CN115829046A - Quantum signal determination method and related device - Google Patents
Quantum signal determination method and related device Download PDFInfo
- Publication number
- CN115829046A CN115829046A CN202310119605.1A CN202310119605A CN115829046A CN 115829046 A CN115829046 A CN 115829046A CN 202310119605 A CN202310119605 A CN 202310119605A CN 115829046 A CN115829046 A CN 115829046A
- Authority
- CN
- China
- Prior art keywords
- quantum
- signal
- situ
- equivalent signal
- equivalent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000011065 in-situ storage Methods 0.000 claims abstract description 120
- 238000012545 processing Methods 0.000 claims abstract description 41
- 238000005259 measurement Methods 0.000 claims abstract description 30
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 18
- 238000009795 derivation Methods 0.000 claims abstract description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 26
- 238000012360 testing method Methods 0.000 claims description 21
- 238000000691 measurement method Methods 0.000 claims description 17
- 238000004590 computer program Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 11
- 239000002096 quantum dot Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000004422 calculation algorithm Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000036039 immunity Effects 0.000 description 3
- 238000005305 interferometry Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010801 machine learning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005293 physical law Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The application discloses a quantum signal measuring method and a related device, relating to the technical field of quantum computation, wherein the method comprises the following steps: acquiring an in-situ signal to be detected; performing signal generation processing on the quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target equivalent signal; wherein, the equivalent signal is generated by a quantum generation circuit; and (4) carrying out derivation on the parameters of the target equivalent signal by time to obtain a time-varying in-situ signal. Equivalent signals similar to the to-be-measured in-situ signals are generated through a quantum generation circuit, parameters of the target equivalent signals are further derived in time, the time-varying in-situ signals can be obtained, an interference method is not needed for measuring the signals, the complexity of measuring the equivalent signals of the quantum equipment is reduced, the noise resistance is improved, and the accuracy and precision of signal measurement are improved.
Description
Technical Field
The present disclosure relates to the field of quantum computing technologies, and in particular, to a quantum signal measurement method, a signal measurement apparatus, a computing device, a quantum device, and a computer-readable storage medium.
Background
Quantum computing is a novel computing mode expected to break through moore's law, however, the current quantum equipment has the problems of large noise, low fidelity and the like, so that the current quantum equipment cannot be practically applied.
Meanwhile, how to reduce the complexity of quantum device equivalent signal measurement and improve the noise immunity is a key issue of attention of those skilled in the art.
Disclosure of Invention
The present application aims to provide a quantum signal measurement method, a signal measurement device, a computing device, a quantum device, and a computer-readable storage medium, so as to reduce the complexity of quantum device equivalent signal measurement and improve noise immunity.
In order to solve the above technical problem, the present application provides a method for measuring a quantum signal, including:
acquiring an in-situ signal to be detected;
performing signal generation processing on a quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target equivalent signal; the equivalent signal is generated by the quantum generation circuit;
and carrying out derivation on the parameters of the target equivalent signal by time to obtain a time-varying in-situ signal.
Optionally, the performing signal generation processing on the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal to obtain a target equivalent signal includes:
generating the equivalent signal through the quantum generation line;
adjusting the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target quantum generation line;
and generating the target equivalent signal through the target quantum generation circuit.
Optionally, adjusting the quantum generation line based on a deviation between the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal to obtain a target quantum generation line, including:
processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison circuit to obtain deviation data;
and adjusting the quantum generation line based on the deviation data to obtain a target quantum generation line.
Optionally, the processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison line to obtain deviation data includes:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a SWAP test quantum line to obtain deviation data.
Optionally, adjusting the quantum generation line based on the deviation data to obtain a target quantum generation line, including:
and adjusting the quantum generation line by adopting the deviation data through backward propagation to obtain a target quantum generation line.
Optionally, the performing signal generation processing on the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal to obtain a target equivalent signal includes:
generating the equivalent signal through the quantum generation line;
processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison circuit to obtain deviation data;
adjusting the quantum generation line based on the deviation data, and generating a new equivalent signal through the adjusted quantum generation line;
judging whether a termination condition is reached based on the adjusted quantum generating line;
if so, taking the new equivalent signal as the target equivalent signal;
and if not, adjusting the quantum generation circuit based on the deviation data between the quantum state of the new equivalent signal and the quantum state of the to-be-detected in-situ signal until a termination condition is reached, and outputting the target equivalent signal.
Optionally, the processing, by using a deviation comparison circuit, the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal to obtain deviation data includes:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through the SWAP test quantum circuit to obtain deviation data.
Optionally, determining whether a termination condition is reached based on the adjusted quantum generation line includes:
and judging whether the deviation data is smaller than a preset value.
Optionally, adjusting the quantum generation line based on the deviation data includes:
and adjusting the quantum generation line in a counter-propagating mode based on the deviation data.
Optionally, determining whether a termination condition is reached based on the adjusted quantum generation line includes:
and judging whether the gradient value of the back propagation is smaller than a gradient threshold value.
Optionally, deriving a parameter of the target equivalent signal with time to obtain a time-varying in-situ signal, including:
obtaining a plurality of parameters from the quantum generation line;
and deriving each parameter by time to obtain the time-varying in-situ signal.
Optionally, obtaining a plurality of parameters from the quantum generation line includes:
each parameter in the shallow quantum wire is acquired.
Optionally, the method further includes:
and storing each acquired parameter in a classical computer.
Optionally, the method further includes:
initializing the quantum generation line based on the configured parameters.
Optionally, initializing the quantum generation line based on the configured parameter includes:
and initializing based on the number of preset quantum bits to obtain the quantum generation line.
Optionally, the process of constructing the quantum generation line includes:
decomposing any multi-bit Hamiltonian to obtain a decomposition result;
and constructing the quantum generation line based on the decomposition result.
Optionally, decomposing any multi-bit hamiltonian to obtain a decomposition result, including:
and decomposing the arbitrary multi-bit Hamiltonian based on the evolution operation of the quantum state to obtain a decomposition result.
The present application also provides a quantum signal measurement device, including:
the to-be-detected signal acquisition module is used for acquiring an in-situ signal to be detected;
the equivalent signal generation module is used for carrying out signal generation processing on the quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal to obtain a target equivalent signal; the equivalent signal is generated by the quantum generation circuit;
and the signal transformation module is used for deriving the parameters of the target equivalent signal by time to obtain a time-varying in-situ signal.
The present application further provides a computing device comprising:
a memory for storing a computer program;
a processor for implementing the steps of the quantum signal measurement method as described above when executing the computer program.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the quantum signal measurement method as described above.
The application provides a quantum signal measuring method, which comprises the following steps: acquiring an in-situ signal to be detected; performing signal generation processing on a quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target equivalent signal; the equivalent signal is generated by the quantum generation circuit; and carrying out derivation on the parameters of the target equivalent signal by time to obtain a time-varying in-situ signal.
The method has the advantages that the equivalent signal similar to the to-be-detected in-situ signal is generated through the quantum generation circuit, the time-varying in-situ signal can be obtained by further deriving the parameters of the target equivalent signal in time, the signal is determined without an interference method, the complexity of quantum equipment equivalent signal determination is reduced, the noise resistance is improved, and the accuracy and precision of signal determination are improved.
The application also provides a quantum signal measuring device, a computing device, a quantum device and a computer readable storage medium, which have the beneficial effects, and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method for measuring quantum signals according to an embodiment of the present disclosure;
FIG. 2 is a quantum circuit diagram of a method for measuring quantum signals according to an embodiment of the present disclosure;
FIG. 3 is a schematic gate diagram illustrating a method for measuring quantum signals according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a deviation circuit of a quantum signal measurement method according to an embodiment of the present disclosure;
FIG. 5 is a flow chart of another quantum signal measurement method provided in the embodiments of the present application;
FIG. 6 is a schematic structural diagram of an apparatus for measuring quantum signals according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a computing device according to an embodiment of the present application.
Detailed Description
The core of the application is to provide a quantum signal determination method, a signal determination device, a computing device, a quantum device and a computer readable storage medium, so as to reduce the complexity of equivalent signal determination of the quantum device and improve the noise resistance.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The application provides a quantum signal measuring method, which is characterized in that an equivalent signal similar to an in-situ signal to be measured is generated through a quantum generating circuit, and the time-varying in-situ signal can be obtained by further deriving the parameters of the target equivalent signal with time, so that the signal is measured by an interference method, the complexity of measuring the equivalent signal of quantum equipment is reduced, the anti-noise capability is improved, and the accuracy and precision of signal measurement are improved.
The following describes a method for measuring a quantum signal provided in the present application, with reference to an embodiment.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for measuring a quantum signal according to an embodiment of the present disclosure.
In this embodiment, the method may include:
s101, acquiring an in-situ signal to be detected;
this step aims to obtain the in-situ signal to be measured.
Wherein the Quantum device may be NISQ (noise Intermediate-Scale Quantum hardware, recently medium-Scale Noisy). In general, a dc or ac control signal in a low temperature environment is distorted when it is transmitted along a control line. But the distorted signal cannot be read directly by the measurement device, which in turn results in the inability to directly adjust the internal signal to reduce errors. Thus, in the present application, the in situ signal is determined by the equivalent signal.
Further, this embodiment may further include:
the quantum generating lines are initialized based on the configured parameters.
It can be seen that the present alternative mainly illustrates that the quantum generation circuit can also be obtained by initializing configured parameters. The configured parameter may be a parameter in the line, or a quantum bit number, or a parameter and a quantum bit number. The effect and usability of the quantum generation line are improved by the initialized quantum generation line in the alternative scheme.
Further, the last alternative may further include:
and initializing based on the preset quantum bit number to obtain the quantum generation line.
It can be seen that the specific description in this alternative is to initialize based on a preset number of qubits to obtain the quantum generation line. And initializing by presetting the quantum bit number, thereby further improving the usability of the quantum generation line.
Further, the process of constructing the quantum generation line in this embodiment may include:
and 2, constructing a quantum generation line based on the decomposition result.
It can be seen that the present alternative is primarily illustrative of how quantum generation lines can be constructed. In the alternative scheme, any multi-bit Hamiltonian is decomposed to obtain a decomposition result; and constructing the quantum generation line based on the decomposition result. That is, an arbitrary multibit Hamiltonian is decomposed, and a quantum generation line is constructed based on the result of the decomposition. Wherein the decomposition may be a Trotter decomposition. Further, by Trotter decomposition, the originally complex Hamiltonian is converted into a plurality of second-order terms, and from the characteristics of the second-order terms, a shallow Quantum Circuit S-VQC (variant Quantum Circuit) which can be executed on a recent medium-scale noisy Quantum hardware device is designed. In the prior art, any complex multi-bit Hamiltonian cannot be effectively processed, and the accuracy of signal measurement is reduced. Therefore, in order to analyze any more complex multi-bit hamiltonian, the method for decomposing the hamiltonian is adopted to decompose the hamiltonian into a plurality of second-order terms, so that effective analysis of any more complex multi-bit hamiltonian is realized, a quantum generation line is constructed based on the decomposed result, a complex problem is decomposed into a plurality of sub-terms which can be processed, and the effect of processing the complex hamiltonian is improved.
Further, in the last alternative, decomposing any multi-bit hamiltonian to obtain a decomposition result includes:
and decomposing any multi-bit Hamiltonian based on the evolution operation of the quantum state to obtain a decomposition result.
It can be seen that the present alternative is primarily illustrative of how the decomposition may be performed. In the alternative scheme, any multi-bit Hamiltonian is decomposed based on the evolution operation of the quantum state, and a decomposition result is obtained.
Any multi-bit hamiltonian can be decomposed into hamiltonian with single-bit and double-bit interaction, so that from any multi-bit hamiltonian, simulating the hamiltonian H (t) requires providing single-bit gate and double-bit entanglement gate operation. And synthesizing any multi-bit Hamiltonian and quantum state evolution operation, and performing Trotter decomposition on the quantum state evolution.
S102, performing signal generation processing on a quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target equivalent signal; wherein, the equivalent signal is generated by a quantum generation circuit;
on the basis of S101, the step aims to perform signal generation processing on a quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target equivalent signal; wherein, the equivalent signal is generated by a quantum generation circuit. Namely, the deviation between the equivalent signal generated by the existing quantum generation circuit and the in-situ signal to be detected is used, and the quantum generation circuit is adjusted based on the deviation, so that the equivalent signal generated by the quantum generation circuit is continuously fitted with the in-situ signal to be detected, and finally the target equivalent signal is obtained.
Further, the step may include:
step 2, adjusting the quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target quantum generation circuit;
and 3, generating a target equivalent signal through a target quantum generation circuit.
It can be seen that the present alternative scheme is mainly used to illustrate how to obtain the final target equivalent signal. In this alternative, an equivalent signal is generated by a quantum generation line; adjusting the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target quantum generation line; and generating a target equivalent signal through the target quantum generation circuit. And adjusting the quantum generation line through the deviation to obtain a final target quantum generation line.
Further, step 2 in the last alternative may include:
step 210, processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison line to obtain deviation data;
and step 220, adjusting the quantum generation line based on the deviation data to obtain a target quantum generation line.
It can be seen that the present alternative is primarily illustrative of how the adjustment may be made. In the alternative scheme, the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal are processed through a deviation comparison line to obtain deviation data; and adjusting the quantum generation line based on the deviation data to obtain a target quantum generation line. The effect and the accuracy of deviation comparison are improved through the deviation comparison circuit.
Further, step 210 in the last alternative may include:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a SWAP test quantum line to obtain deviation data.
Therefore, in the alternative scheme, the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected are processed mainly through the SWAP test quantum line, so that deviation data are obtained. Among them, SWAP test is a special form of a fundamental quantum wire. For any two quantum states with the same dimensionality, the fidelity of the two quantum states can be obtained through a SWAP Test line, and the overlapping condition of the two quantum states is reflected.
Further, step 220 in the last alternative may include:
and adjusting the quantum generation line by adopting deviation data through backward propagation to obtain a target quantum generation line.
Therefore, in the alternative scheme, the quantum generation line is adjusted by adopting deviation data through back propagation to obtain the target quantum generation line. Further, parameters in the quantum generation line are adjusted through backward propagation by adopting deviation data, and the target quantum generation line is obtained. The quantum generation circuit is adjusted in a back propagation mode, and accuracy of adjusting parameters in the circuit is improved.
And S103, deriving the parameters of the target equivalent signal by time to obtain a time-varying in-situ signal.
On the basis of S102, this step is to derive the parameters of the target equivalent signal in time to obtain a time-varying in-situ signal. And if the target equivalent signal is basically consistent with the in-situ signal to be detected, parameters can be directly obtained from a quantum generation line for generating the target equivalent signal, and the parameters are derived to obtain the time-varying in-situ signal. Instead of measuring by a complicated means, the complexity of the measurement is reduced, and the accuracy is improved.
Obviously, the embodiment realizes the measurement of the time-varying in-situ signal, can simulate any complex in-situ signal, and overcomes the major defect of the mainstream algorithm. And because a shallow layer variational quantum line is introduced, the method is not sensitive to measurement noise in principle due to the robustness of machine learning.
Further, the step may include:
and 2, performing derivation on each parameter by time to obtain a time-varying in-situ signal.
It can be seen that the present alternative is mainly illustrative of how the derivation is performed. In this alternative, a plurality of parameters are obtained from the quantum generation line; and (4) carrying out derivation on each parameter by time to obtain a time-varying in-situ signal. The parameter is a parameter of each qubit in the line, and can reflect a Hamiltonian of the in-situ signal.
Further, step 1 in the last alternative may include:
each parameter in the shallow quantum wire is acquired.
It can be seen that in the present alternative, it may be that each parameter in the shallow quantum wire is acquired.
Further, this embodiment may further include:
each parameter obtained is stored in the classical computer.
Therefore, in the alternative, each acquired parameter can be stored in a classical computer, and additional calculation and measurement operations are not required to be introduced, so that the complexity is reduced.
In summary, in the embodiment, the equivalent signal similar to the to-be-measured in-situ signal is generated through the quantum generation circuit, and the time-varying in-situ signal can be obtained by further deriving the parameters of the target equivalent signal with time, without measuring the signal by using an interference method, so that the complexity of measuring the equivalent signal of the quantum device is reduced, the noise immunity is improved, and the accuracy and precision of signal measurement are improved.
The equivalent signal acquisition method in the quantum signal measurement method provided by the present application is further described below with reference to another specific example.
In this embodiment, the method may include:
s201, generating an equivalent signal through a quantum generation line;
this step is intended to generate an equivalent signal by means of quantum generation circuitry.
The equivalent signal may be an equivalent signal obtained after initialization of the quantum generation circuit. Or an equivalent signal generated after continuously adjusting the quantum generation circuit.
S202, processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison line to obtain deviation data;
on the basis of S201, this step aims to process the quantum state of the equivalent signal and the quantum state of the to-be-measured in-situ signal through a deviation comparison line, so as to obtain deviation data.
The deviation calculation may be performed through a deviation comparison line, or may be performed through a SWAP test quantum line, or may be performed through any one of the deviation calculation methods provided in the prior art, which is not specifically limited herein.
Further, the step may include:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through the SWAP test quantum line to obtain deviation data.
Therefore, in the alternative scheme, the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected are processed mainly through the SWAP test quantum line, so that deviation data are obtained. Among them, SWAP test is a special form of a fundamental quantum wire. For any two quantum states with the same dimensionality, the fidelity of the two quantum states can be obtained through a SWAP Test line, and the overlapping condition of the two quantum states is reflected.
S203, adjusting the quantum generation line based on the deviation data, and generating a new equivalent signal through the adjusted quantum generation line;
on the basis of S202, this step is intended to adjust the quantum generation line based on the deviation data, and generate a new equivalent signal through the adjusted quantum generation line.
S204, judging whether a termination condition is reached based on the adjusted quantum generation line;
on the basis of S203, the present step aims to determine whether or not a termination condition is reached based on the adjusted quantum generation line.
The termination condition may be a termination condition set based on experience, may also be a termination condition that determines whether the deviation is smaller than a preset value, and may also be a termination condition that determines whether the gradient value is smaller than a gradient threshold.
Further, the step may include:
and judging whether the deviation data is smaller than a preset value.
It can be seen that in the present alternative deviation data is used as the termination condition. The preset value may be a value set empirically, a value determined based on a historical value, or a value determined based on both experience and historical value.
Further, the adjusting the quantum generation line based on the deviation data in S203 may include:
adjusting quantum generation lines in a counter-propagating manner based on deviation data
Accordingly, S203 may include:
and judging whether the gradient value of the backward propagation is smaller than a gradient threshold value.
It can be seen that the gradient values are used as termination conditions in this alternative. The gradient threshold value may be a value set empirically, may be a value determined based on a history value, or may be a value determined based on both experience and a history value.
S205, if yes, taking the new equivalent signal as a target equivalent signal;
on the basis of S204, this step is intended to take the new equivalent signal as the target equivalent signal. That is, a signal fitted to the in-situ signal to be measured is obtained and output.
And S206, if not, adjusting the quantum generation line based on the deviation data between the quantum state of the new equivalent signal and the quantum state of the to-be-detected in-situ signal until a termination condition is reached, and outputting a target equivalent signal.
On the basis of S204, this step aims to adjust the quantum generation line based on the deviation data between the quantum state of the new equivalent signal and the quantum state of the in-situ signal to be measured until the termination condition is reached, and output the target equivalent signal.
That is, when the termination condition is not met, the equivalent signal is generated through the skipped quantum generation line; processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison circuit to obtain deviation data; and adjusting the quantum generation line based on the deviation data, judging whether a termination condition is met, and if so, exiting from circulation to obtain a target equivalent signal. And if the termination condition is not met, continuing to adjust and calculate.
Therefore, in the embodiment, the equivalent signal similar to the to-be-measured in-situ signal is generated through the quantum generation circuit, and the time-varying in-situ signal can be obtained by further deriving the parameters of the target equivalent signal in time without measuring the signal by an interference method, so that the complexity of measuring the equivalent signal of the quantum equipment is reduced, the anti-noise capability is improved, and the accuracy and precision of signal measurement are improved.
The method for measuring a quantum signal provided herein is further illustrated by the following specific examples.
In this embodiment, the principle of signal measurement by the Ramsey interferometry is first applied.
For quantum computing, the essence is to perform an evolution operation on a quantum state, as shown in the following formula:
where Ψ (0) is the initial quantum state, Ψ (T) is the quantum state after evolution by time T, e is the base of the natural logarithm (2.71828 \ 8230), i is the imaginary part, T is the time, T is the total time of evolution, and H is the Hamiltonian.
When H is a simple hamiltonian, it can be expanded into the form of a standard pauli matrix, as shown in the following equation:
where k ∈ { x, y, z }, is an axis in the stereo coordinate system, u (t) is the time-varying in-situ signal to be measured,
is a standard pauli matrix.
Substituting the above formula into evolution operation, have
Wherein, theta is the original qubit edge
The angle of rotation of (c). When k is x, θ can be measured
Is desirably obtained as shown in the following formula:
therefore, if the Ramsey interferometry is used to obtain the time-varying in-situ signal u (t) to be measured, the following formula can be used:
wherein,
"·" present above is the operator that differentiates y (t).
However, the requirement for H (t) is severe here, and when H (t) is an arbitrary complex hamiltonian, it is represented by the following formula:
wherein,
to exclude
Any Hamiltonian outside, v (t), is a partial signal of the time-varying in-situ signal to be measured.
H (t) at the moment cannot be obtained by Ramsey interferometry.
Then, a shallow quantum wire S-VQC construction is constructed.
It can be seen that the Ramsey method cannot be directly adopted, but the embodiment simulates the effect of the hamiltonian of the signal by using the shallow quantum line S-VQC to obtain an equivalent circuit, which is as follows.
Any multi-bit Hamiltonian can be decomposed into Hamiltonian with only single and double bit interaction, and from the formula of the formula H (t), the simulation of the Hamiltonian H (t) needs to provide single-bit gate and double-bit entanglement gate operation. By combining the H (t) and formula evolution operations, the quantum state evolution can be decomposed by Trotter, as shown in the following formula:
。
the formula comprises four items, wherein the first three items are single-bit standard Paglie matrix transformation, the last item is a two-bit interaction item, T is time, T is total time of evolution, N is evolution times, N = T/T, psi (T) is a quantum state after the evolution time T, i is an imaginary part, k belongs to { x, y, z } and is an axis in a stereo coordinate system, and l =1 is the evolution times starting from 1.
Referring to fig. 2, fig. 2 is a quantum circuit diagram of a quantum signal measurement method according to an embodiment of the present application.
In FIG. 2,. Psi.q.1, q.2, and q.3 \.8230denotes quantum states corresponding to quantum lines, and the total number is n qubits.
Referring to fig. 3, fig. 3 is a gate circuit diagram of a method for measuring a quantum signal according to an embodiment of the present disclosure.
Wherein, U1, U2, U3 8230and U 1-2 、U 2-3 The details of the lines are shown in FIG. 3, R z 、R y All being quantum-capable of operation, R z （θ i ) Representing rotation theta along the z-axis i The angle of (c). Thus, in FIG. 3
、
、
、
、
The designation in parentheses is the angle of rotation, R z Meaning rotation along the z-axis, R y Meaning rotation along the y-axis.
Thus, U i Thus realizing any single-bit gate, namely the standard Paglie matrix transformation corresponding to a single bit; u shape i-（i+1） Any double-bit gate can be realized, and the double-bit interaction items are corresponded. Wherein the single bit gate has three adjustable parameters of theta, phi and omega, the double bit gate has 4 +3=15 adjustable parameters, and the single bit gate U i In principle, can be used with U in a double bit gate i1 Merging to further reduce parameters.
Will U i-（i+1） The staggered formation is designed to facilitate quantum parallelism. At U i-（i+1） Followed by a U i-（i+1） ' to take into account that when the in situ signal does not contain two bits interacting, U can be optimized i-（i+1） And U i-（i+1） ' cancel each other out. If this U is not introduced i-（i+1） ’，U i-（i+1） Difficult to eliminate by itself in an optimized manner.
And finally, acquiring the deviation of the equivalent signal and the actual in-situ signal through the SWAP test.
The shallow quantum wire S-VQC of fig. 2, can simulate any in-situ signal, however the simulation requires the adjustment of the parameters to be achieved. Specifically, by analyzing the deviation between the equivalent signal and the actual in-situ signal, the deviation is calculated for the parameter to obtain the gradient of the parameter, the parameter is modified by back propagation, and when the convergence condition is reached (generally, the deviation between the equivalent signal and the actual in-situ signal is smaller than a set value), the equivalent signal can be considered to be obtained.
Referring to fig. 4, fig. 4 is a schematic diagram of a deviation circuit of a method for measuring a quantum signal according to an embodiment of the present disclosure.
The deviation between the equivalent signal and the actual in-situ signal is realized by SWAP test, and the SWAP test quantum line is shown in fig. 4.
Wherein, |0> is the auxiliary qubit, H is the Hadamard gate, SWAP is the control SWAP gate C-SWAP, and M is the measurement operation. Phi is the quantum state generated by the in-situ signal and psi is the quantum state generated by the equivalent signal.
The probability of the state |0> is obtained after measuring the auxiliary bit through the SWAP test for many times, the similarity of phi and psi can be obtained, and the parameters in the shallow quantum line S-VQC for realizing psi can be adjusted through the backward propagation.
Referring to fig. 5, fig. 5 is a flowchart of another quantum signal measurement method according to an embodiment of the present disclosure.
The present embodiment proposes an equivalent quantum signal measurement method applied to a quantum device, and the flow is shown in fig. 5, and the specific implementation manner is as follows:
s1: the shallow quantum wires S-VQC are initialized according to the known number of qubits.
S2: and transmitting the quantum state psi generated by the S-VQC and the quantum state phi generated by the to-be-detected in-situ signal into the SWAP test, and calculating the deviation.
S3: according to the deviation, the back propagation adjusts parameters in the S-VQC.
S4: and judging whether a termination condition is reached, wherein the termination condition can be that the gradient is smaller than a specified value epsilon, and returning to S2 if the condition is not reached.
S5: each parameter in the S-VQC line is acquired while it should still be stored in the classical computer, so no additional calculation and measurement operations need to be introduced.
S6: and (4) obtaining all time-varying in-situ signals at one time by differentiating each parameter with respect to time.
Therefore, the embodiment provides a method for simulating an equivalent signal by using a specific shallow adjustable quantum circuit to realize the measurement of a time-varying in-situ signal. The method can simulate any complex in-situ signal, and overcomes the major defect of the mainstream algorithm. And because a shallow layer variational quantum line is introduced, the method is not sensitive to measurement noise in principle due to the robustness of machine learning. There is therefore a significant advance in the art.
In addition, the method only needs to measure one auxiliary bit in the SWAP test in the whole process, and the efficiency is far higher than that of the existing method. Although the algorithm complexity after introducing the back propagation cannot be directly obtained from the theory, the method has advantages over other methods in the NISQ stage according to the shallow layer characteristic of the line.
The embodiment starts from the principle, designs a line which accords with the quantum physical law to obtain an equivalent signal, and the line is subjected to the approximation of Trotter decomposition and the optimization of a gate line, and has the characteristics of simplicity, accuracy and strong expression capability.
In conclusion, the embodiment provides a time-varying in-situ signal acquisition technology which is simple, efficient and high in expression capacity, and is expected to be rapidly applied in the NISQ stage.
Therefore, in the embodiment, the equivalent signal similar to the to-be-measured in-situ signal is generated through the quantum generation circuit, and the time-varying in-situ signal can be obtained by further deriving the parameters of the target equivalent signal in time without measuring the signal by an interference method, so that the complexity of measuring the equivalent signal of the quantum equipment is reduced, the anti-noise capability is improved, and the accuracy and precision of signal measurement are improved.
The following describes a quantum signal measurement device provided in an embodiment of the present application, and the quantum signal measurement device described below and the quantum signal measurement method described above are referred to correspondingly.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a quantum signal measurement device according to an embodiment of the present disclosure.
In this embodiment, the apparatus may include:
a to-be-detected signal acquisition module 100, configured to acquire a to-be-detected in-situ signal;
the equivalent signal generation module 200 is configured to perform signal generation processing on the quantum generation line based on a deviation between a quantum state of the equivalent signal and a quantum state of the in-situ signal to be detected, so as to obtain a target equivalent signal; wherein, the equivalent signal is generated by a quantum generation circuit;
and the signal transformation module 300 is configured to derive the parameters of the target equivalent signal with time to obtain a time-varying in-situ signal.
Optionally, the equivalent signal generating module 200 is specifically configured to generate an equivalent signal through a quantum generation line; adjusting the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target quantum generation line; and generating a target equivalent signal through the target quantum generation circuit.
Optionally, the adjusting the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal to obtain the target quantum generation line may include:
processing the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected through a deviation comparison line to obtain deviation data;
and adjusting the quantum generation line based on the deviation data to obtain a target quantum generation line.
Optionally, the processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through the deviation comparison line to obtain deviation data includes:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through the SWAP test quantum line to obtain deviation data.
Optionally, the adjusting the quantum generation line based on the deviation data to obtain the target quantum generation line includes:
and adjusting the quantum generation line by adopting deviation data through backward propagation to obtain a target quantum generation line.
Optionally, the equivalent signal generating module 200 is specifically configured to perform signal generation processing on a quantum generation line based on a deviation between a quantum state of the equivalent signal and a quantum state of the to-be-detected in-situ signal to obtain a target equivalent signal, and includes:
generating an equivalent signal through a quantum generation line;
processing the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected through a deviation comparison line to obtain deviation data;
adjusting the quantum generation circuit based on the deviation data, and generating a new equivalent signal through the adjusted quantum generation circuit;
judging whether a termination condition is reached based on the adjusted quantum generation line;
if so, taking the new equivalent signal as a target equivalent signal;
and if not, adjusting the quantum generation circuit based on the deviation data between the quantum state of the new equivalent signal and the quantum state of the to-be-detected in-situ signal until a termination condition is reached, and outputting a target equivalent signal.
Optionally, the processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through the deviation comparison line to obtain deviation data includes:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through the SWAP test quantum line to obtain deviation data.
Optionally, the determining whether the termination condition is reached based on the adjusted quantum generation line includes:
and judging whether the deviation data is smaller than a preset value.
Optionally, the adjusting the quantum generation line based on the deviation data includes:
and adjusting the quantum generation circuit in a counter-propagating mode based on the deviation data.
Optionally, the determining whether the termination condition is reached based on the adjusted quantum generation line includes:
and judging whether the gradient value of the backward propagation is smaller than a gradient threshold value.
Optionally, the signal transformation module 300 is specifically configured to obtain a plurality of parameters from a quantum generation line; and (4) carrying out derivation on each parameter by time to obtain a time-varying in-situ signal.
Optionally, the obtaining a plurality of parameters from the quantum generation line includes:
each parameter in the shallow quantum wire is acquired.
Optionally, the apparatus may further include:
and the parameter storage module is used for storing each acquired parameter in the classical computer.
Optionally, the apparatus may further include:
and the line initialization module is used for initializing the quantum generation line based on the configured parameters.
Optionally, initializing the quantum generation line based on the configured parameter includes:
and initializing based on the preset quantum bit number to obtain the quantum generation line.
Optionally, the process of constructing the quantum generation line includes:
decomposing any multi-bit Hamiltonian to obtain a decomposition result;
and constructing the quantum generation line based on the decomposition result.
Optionally, decomposing any multi-bit hamiltonian to obtain a decomposition result, including:
and decomposing any multi-bit Hamiltonian based on the evolution operation of the quantum state to obtain a decomposition result.
Therefore, in the embodiment, the equivalent signal similar to the to-be-measured in-situ signal is generated through the quantum generation circuit, and the time-varying in-situ signal can be obtained by further deriving the parameters of the target equivalent signal in time without measuring the signal by an interference method, so that the complexity of measuring the equivalent signal of the quantum equipment is reduced, the anti-noise capability is improved, and the accuracy and precision of signal measurement are improved.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a computing device according to an embodiment of the present application, where the computing device may include:
a memory for storing a computer program;
a processor for implementing the steps of any of the above-described methods of quantum signal measurement when executing a computer program.
As shown in fig. 7, which is a schematic diagram of a composition structure of a computing device, the computing device may include: a processor 10, a memory 11, a communication interface 12 and a communication bus 13. The processor 10, the memory 11 and the communication interface 12 all communicate with each other through a communication bus 13.
In the embodiment of the present application, the processor 10 may be a Central Processing Unit (CPU), an application specific integrated circuit, a digital signal processor, a field programmable gate array or other programmable logic device, etc.
The processor 10 may call a program stored in the memory 11, and in particular, the processor 10 may perform operations in an embodiment of the exception IP recognition method.
The memory 11 is used for storing one or more programs, the program may include program codes, the program codes include computer operation instructions, in this embodiment, the memory 11 stores at least the program for implementing the following functions:
acquiring an in-situ signal to be detected;
performing signal generation processing on the quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target equivalent signal; wherein, the equivalent signal is generated by a quantum generation circuit;
and (3) carrying out derivation on the parameters of the target equivalent signal in time to obtain a time-varying in-situ signal.
In one possible implementation, the memory 11 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created during use.
Further, the memory 11 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device or other volatile solid state storage device.
The communication interface 12 may be an interface of a communication module for connecting with other devices or systems.
Of course, it should be noted that the structure shown in fig. 7 does not constitute a limitation to the computing device in the embodiment of the present application, and in practical applications, the computing device may include more or less components than those shown in fig. 7, or some components may be combined.
The application also provides a quantum device, including:
a memory for storing a computer program;
a processor for implementing the steps of the quantum signal measurement method according to any one of claims 1 to 17 when executing the computer program.
The quantum device is used for processing quantum bits. The memory in the quantum device is used for storing a computer program of quantum bits, and the corresponding processor executes the computer program.
The present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, can implement the steps of any one of the quantum signal measurement methods described above.
The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
For the introduction of the computer-readable storage medium provided in the present application, please refer to the above method embodiments, which are not described herein again.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The present application provides a quantum signal measurement method, a signal measurement device, a computing device, a quantum device, and a computer-readable storage medium. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that numerous changes and modifications can be made to the present application by those skilled in the art without departing from the principles of the present application,
such improvements and modifications are intended to fall within the scope of the appended claims.
Claims (21)
1. A method for measuring a quantum signal, comprising:
acquiring an in-situ signal to be detected;
performing signal generation processing on a quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target equivalent signal; the equivalent signal is generated by the quantum generation circuit;
and carrying out derivation on the parameters of the target equivalent signal by time to obtain a time-varying in-situ signal.
2. The method according to claim 1, wherein the process of constructing the quantum generation line comprises:
decomposing any multi-bit Hamiltonian to obtain a decomposition result;
constructing the quantum generation line based on the decomposition result.
3. The method of claim 2, wherein decomposing any multi-bit Hamiltonian to obtain a decomposition result comprises:
and decomposing the arbitrary multi-bit Hamiltonian based on the evolution operation of the quantum state to obtain a decomposition result.
4. The method for measuring a quantum signal according to claim 1, wherein performing signal generation processing on a quantum generation line based on a deviation between a quantum state of an equivalent signal and a quantum state of the in-situ signal to be measured to obtain a target equivalent signal comprises:
generating the equivalent signal through the quantum generation line;
adjusting the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be detected to obtain a target quantum generation line;
and generating the target equivalent signal through the target quantum generation circuit.
5. The method according to claim 4, wherein the adjusting the quantum generation line based on the deviation between the quantum state of the equivalent signal and the quantum state of the in-situ signal to be measured to obtain a target quantum generation line comprises:
processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison circuit to obtain deviation data;
and adjusting the quantum generation line based on the deviation data to obtain a target quantum generation line.
6. The method for measuring quantum signals according to claim 5, wherein the processing the quantum states of the equivalent signal and the in-situ signal to be measured through a deviation comparison circuit to obtain deviation data comprises:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a SWAP test quantum line to obtain deviation data.
7. The quantum signal measurement method according to claim 5, wherein adjusting the quantum generation line based on the deviation data to obtain a target quantum generation line comprises:
and adjusting the quantum generation line by adopting the deviation data through backward propagation to obtain a target quantum generation line.
8. The method for measuring a quantum signal according to claim 1, wherein performing signal generation processing on a quantum generation line based on a deviation between a quantum state of an equivalent signal and a quantum state of the in-situ signal to be measured to obtain a target equivalent signal comprises:
generating the equivalent signal through the quantum generation line;
processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a deviation comparison circuit to obtain deviation data;
adjusting the quantum generation line based on the deviation data, and generating a new equivalent signal through the adjusted quantum generation line;
judging whether a termination condition is reached based on the adjusted quantum generating line;
if so, taking the new equivalent signal as the target equivalent signal;
and if not, adjusting the quantum generation circuit based on the deviation data between the quantum state of the new equivalent signal and the quantum state of the to-be-detected in-situ signal until a termination condition is reached, and outputting the target equivalent signal.
9. The method for measuring the quantum signal according to claim 8, wherein the processing the quantum state of the equivalent signal and the quantum state of the in-situ signal to be measured through a deviation comparison circuit to obtain deviation data comprises:
and processing the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal through a SWAP test quantum line to obtain deviation data.
10. The method of claim 8, wherein determining whether a termination condition is reached based on the adjusted quantum generation line comprises:
and judging whether the deviation data is smaller than a preset value.
11. The method according to claim 8, wherein adjusting the quantum generation line based on the deviation data includes:
and adjusting the quantum generation line in a counter-propagating mode based on the deviation data.
12. The method of claim 11, wherein determining whether a termination condition is reached based on the adjusted quantum generation line comprises:
and judging whether the gradient value of the backward propagation is smaller than a gradient threshold value.
13. The method of claim 1, wherein deriving the time-varying in-situ signal from the time-derived parameters of the target equivalent signal comprises:
obtaining a plurality of parameters from the quantum generation line;
and deriving each parameter by time to obtain the time-varying in-situ signal.
14. The method of claim 13, wherein obtaining a plurality of parameters from the quantum generation line comprises:
each parameter in the shallow quantum wire is acquired.
15. The method for quantum signal measurement according to claim 14, further comprising:
and storing each acquired parameter in a classical computer.
16. The method for quantum signal measurement according to claim 1, further comprising:
initializing the quantum generation line based on the configured parameters.
17. The method of claim 16, wherein initializing the quantum generation circuit based on the configured parameters comprises:
and initializing based on the number of preset quantum bits to obtain the quantum generation line.
18. A quantum signal measurement device, comprising:
the to-be-detected signal acquisition module is used for acquiring an in-situ signal to be detected;
the equivalent signal generation module is used for carrying out signal generation processing on the quantum generation circuit based on the deviation between the quantum state of the equivalent signal and the quantum state of the to-be-detected in-situ signal to obtain a target equivalent signal; the equivalent signal is generated by the quantum generation circuit;
and the signal transformation module is used for deriving the parameters of the target equivalent signal by time to obtain a time-varying in-situ signal.
19. A computing device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the quantum signal measurement method according to any one of claims 1 to 17 when executing the computer program.
20. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of a quantum signal determination method as claimed in any one of claims 1 to 17.
21. A quantum device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the quantum signal measurement method according to any one of claims 1 to 17 when executing the computer program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310119605.1A CN115829046B (en) | 2023-02-15 | 2023-02-15 | Quantum signal determination method and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310119605.1A CN115829046B (en) | 2023-02-15 | 2023-02-15 | Quantum signal determination method and related device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115829046A true CN115829046A (en) | 2023-03-21 |
| CN115829046B CN115829046B (en) | 2023-05-05 |
Family
ID=85521494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310119605.1A Active CN115829046B (en) | 2023-02-15 | 2023-02-15 | Quantum signal determination method and related device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115829046B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062482A (en) * | 2019-11-28 | 2020-04-24 | 南方科技大学 | Quantum state reconstruction method, device and system and storage medium |
| CN113326944A (en) * | 2021-01-27 | 2021-08-31 | 腾讯科技（深圳）有限公司 | Quantum circuit and quantum processor |
| CN113592095A (en) * | 2021-08-04 | 2021-11-02 | 北京量子信息科学研究院 | Model training method and device based on quantum computation |
| CN113657602A (en) * | 2021-08-17 | 2021-11-16 | 北京百度网讯科技有限公司 | Method and apparatus for quantum computing |
| US20210374307A1 (en) * | 2020-05-28 | 2021-12-02 | Microsoft Technology Licensing, Llc | Separable-state simulation of quantum program code |
| US20210406749A1 (en) * | 2020-06-30 | 2021-12-30 | Massachusetts Institute Of Technology | Quantum measurement emulation error mitigation protocol for quantum computing |
| CN115423113A (en) * | 2022-09-26 | 2022-12-02 | 北京大学 | Quantum simulation method and device based on quantum gate |
| CN115514336A (en) * | 2022-09-30 | 2022-12-23 | 合肥本源量子计算科技有限责任公司 | Impedance matching circuit, test device, and quantum computer |
-
2023
- 2023-02-15 CN CN202310119605.1A patent/CN115829046B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062482A (en) * | 2019-11-28 | 2020-04-24 | 南方科技大学 | Quantum state reconstruction method, device and system and storage medium |
| US20210374307A1 (en) * | 2020-05-28 | 2021-12-02 | Microsoft Technology Licensing, Llc | Separable-state simulation of quantum program code |
| US20210406749A1 (en) * | 2020-06-30 | 2021-12-30 | Massachusetts Institute Of Technology | Quantum measurement emulation error mitigation protocol for quantum computing |
| CN113326944A (en) * | 2021-01-27 | 2021-08-31 | 腾讯科技（深圳）有限公司 | Quantum circuit and quantum processor |
| US20220269970A1 (en) * | 2021-01-27 | 2022-08-25 | Tencent Technology (Shenzhen) Company Limited | Quantum circuit and quantum processor |
| CN113592095A (en) * | 2021-08-04 | 2021-11-02 | 北京量子信息科学研究院 | Model training method and device based on quantum computation |
| CN113657602A (en) * | 2021-08-17 | 2021-11-16 | 北京百度网讯科技有限公司 | Method and apparatus for quantum computing |
| CN115423113A (en) * | 2022-09-26 | 2022-12-02 | 北京大学 | Quantum simulation method and device based on quantum gate |
| CN115514336A (en) * | 2022-09-30 | 2022-12-23 | 合肥本源量子计算科技有限责任公司 | Impedance matching circuit, test device, and quantum computer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115829046B (en) | 2023-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11080833B2 (en) | Image manipulation using deep learning techniques in a patch matching operation | |
| CN113592095B (en) | Model training method and device based on quantum computation | |
| CN114429218B (en) | Method and device for eliminating quantum noise, electronic equipment and medium | |
| CN112435297B (en) | Target object pose determining method and device, storage medium and electronic equipment | |
| AU2023282270A1 (en) | Measuring quantum state purity | |
| CN114997407B (en) | Noise elimination method and device of quantum measurement equipment, electronic equipment and medium | |
| CN112164008A (en) | Training method of image data enhancement network, and training device, medium, and apparatus thereof | |
| CN115310618B (en) | Quantum noise elimination method and device in quantum operation, electronic equipment and medium | |
| CN112784981A (en) | Training sample set generation method, and training method and device for deep generation model | |
| CN110765843A (en) | Face verification method and device, computer equipment and storage medium | |
| CN118295029B (en) | Seismic data denoising method integrating self-attention and Mamba architecture | |
| CN114580649A (en) | Method and device for eliminating quantum Pagli noise, electronic equipment and medium | |
| CN114492823A (en) | Method and apparatus for eliminating quantum noise, electronic device, and medium | |
| CN114819163A (en) | Quantum generation countermeasure network training method, device, medium, and electronic device | |
| CN110929733A (en) | Denoising method and device, computer equipment, storage medium and model training method | |
| CN114897175A (en) | Noise elimination method and device for quantum measurement equipment, electronic equipment and medium | |
| WO2023222576A1 (en) | Watermarking quantum models by leveraging metadata | |
| US20200074277A1 (en) | Fuzzy input for autoencoders | |
| JP6829518B2 (en) | Systems and methods for generating random numbers using physical variations present in material samples | |
| JP4921722B2 (en) | Random signal conversion and its application example | |
| CN117634623A (en) | Model training method, device, equipment and medium for quantum state generation | |
| CN115829046A (en) | Quantum signal determination method and related device | |
| US7671860B2 (en) | Representing implicit curves of procedural geometric surfaces | |
| US20220405561A1 (en) | Electronic device and controlling method of electronic device | |
| CN116032457A (en) | Chaotic stream encryption method, device, equipment and medium based on Tent mapping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |