CN115470922B - Quantum bit calibration method and device, quantum control system and quantum computer - Google Patents

Quantum bit calibration method and device, quantum control system and quantum computer Download PDF

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CN115470922B
CN115470922B CN202210309493.1A CN202210309493A CN115470922B CN 115470922 B CN115470922 B CN 115470922B CN 202210309493 A CN202210309493 A CN 202210309493A CN 115470922 B CN115470922 B CN 115470922B
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孔伟成
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Benyuan Quantum Computing Technology Hefei Co ltd
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Abstract

The invention discloses a quantum bit calibration method and device, a quantum control system and a quantum computer, wherein the quantum bit calibration method is used for obtaining the stable running time of a quantum bit to be tested, wherein the stable running time is the longest time of the quantum bit to be tested without errors under the working state; and performing calibration operation on the quantum bit to be measured based on the stable operation time. By utilizing the quantum bit calibration scheme, automatic calibration of the quantum bit can be realized without human intervention, and the calibration operation is automatically carried out on the quantum bit to be measured after the stable running time of the quantum bit to be measured is reached, so that the calibration efficiency and accuracy are effectively improved.

Description

Quantum bit calibration method and device, quantum control system and quantum computer
Technical Field
The invention relates to the field of quantum computing, in particular to a quantum bit calibration method and device, a quantum control system and a quantum computer.
Background
Quantum computation and quantum information are a cross subject for realizing computation and information processing tasks based on the principle of quantum mechanics, and have very close connection with subjects such as quantum physics, computer science, informatics and the like. There has been a rapid development in the last two decades. Quantum computer-based quantum algorithms in factorization, unstructured search, etc. scenarios exhibit far beyond the performance of existing classical computer-based algorithms, and this direction is expected to be beyond the existing computing power. Since quantum computing has a potential to solve specific problems far beyond the development of classical computer performance, in order to realize a quantum computer, it is necessary to obtain a quantum chip containing a sufficient number and a sufficient mass of qubits, and to enable quantum logic gate operation and reading of the qubits with extremely high fidelity.
The quantum chip is equivalent to the traditional computer of the CPU, and the quantum chip is the core component of the quantum computer. With the continuous research and advancement of quantum computing related technologies, the number of quantum bits on a quantum chip is also increasing year by year, and it is expected that larger-scale quantum chips will appear later, and at that time, the number of quantum bits in the quantum chip will be greater, and larger-scale quantum chips will be mounted in a quantum computer. With the increase of the number of the qubits in the quantum chip, the problem of parameter drift of some qubits is necessarily faced in the use process, and at this time, corresponding calibration operation is needed to be carried out on the qubits.
In general, a quantum chip needs to go through multiple earlier testing stages from research and development to online use, and cannot be used online until performance parameters of the quantum chip meet the online requirement. In the early test stage, all the quantum bits in the quantum chip can be tested and calibrated in detail according to a set of test flow, so that the specific parameters can be timely obtained in the early test stage to drift. After online use, for example, when a quantum chip performs a quantum computing task, the performance of a certain quantum bit in the quantum chip is abnormal, so that a specific parameter drift cannot be timely obtained. Aiming at the problem in the prior art, the method generally uses staff to judge according to past experience and output signals of quantum bits, and the scheme has lower efficiency and greatly influences the execution efficiency of quantum computing tasks.
Therefore, it is becoming an urgent problem in the art to propose a solution that can implement automatic calibration of qubit parameters.
It should be noted that the information disclosed in the background section of the present application is only for enhancement of understanding of the general background of the present application and should not be taken as an admission or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a quantum bit calibration method and device, a quantum control system and a quantum computer, which are used for solving the problem of low efficiency of the existing quantum bit calibration scheme.
In order to solve the above technical problems, the present invention provides a qubit calibration method, including:
obtaining stable operation time of a quantum bit to be detected, wherein the stable operation time is the longest time of the quantum bit to be detected in a working state without errors;
and performing calibration operation on the quantum bit to be detected based on the stable operation time.
Optionally, the obtaining the stable running time of the qubit to be measured includes:
applying a driving signal to the quantum bit to be detected in a first time to enable the quantum bit to be in an operation working state, and obtaining an error rate of the quantum bit to be detected in the first time, wherein the error rate is determined based on the number of times that the quantum bit to be detected executes a quantum computing task and the number of times that an error occurs;
judging whether the error rate exceeds a preset threshold value;
and adjusting the first time based on a judgment result, and returning to execute the application of a driving signal to the quantum bit to be detected in the first time so as to enable the quantum bit to be in an operation working state, and obtaining the error rate of the quantum bit to be detected in the first time until the maximum value of the first time is obtained, wherein the stable operation time is the maximum value of the first time.
Optionally, the adjusting the first time based on the determination result, and returning to execute the applying a driving signal to the qubit to be tested in the first time to make the qubit be in a running working state, so as to obtain an error rate of the qubit to be tested in the first time until obtaining a maximum value of the first time, where the stable running time is the maximum value of the first time, and includes:
if the error rate is greater than the preset threshold, reducing the first time, and returning to execute the application of a driving signal to the to-be-detected qubit in the first time to enable the qubit to be in an operation working state, so as to obtain the error rate of the to-be-detected qubit in the first time until the error rate is equal to the preset threshold;
if the error rate is smaller than the preset threshold, increasing the first time, and returning to execute the application of a driving signal to the to-be-detected qubit in the first time to enable the qubit to be in an operation working state, so as to obtain the error rate of the to-be-detected qubit in the first time until the error rate is equal to the preset threshold;
and outputting the current first time as the stable running time.
Optionally, the qubit calibration method further comprises:
acquiring a first probability of error of each qubit parameter of the qubit to be detected;
and executing the calibration operation on the quantum bit to be tested based on the first probability.
Optionally, the performing the calibration operation on the qubit to be measured based on the first probability includes:
acquiring a first directed acyclic graph, wherein the first directed acyclic graph is used for representing a plurality of quantum bit parameters of a quantum bit to be detected and the dependency relationship among the plurality of quantum bit parameters;
and performing the calibration operation on the quantum bit to be measured based on the first directed acyclic graph and the first probability.
Optionally, the performing the calibration operation on the qubit under test based on the first directed acyclic graph and the first probability includes:
and acquiring the quantum bit parameter corresponding to the first probability maximum value as a first parameter, and starting traversing calibration from the node corresponding to the first parameter to the front or back in the first directed acyclic graph.
Optionally, the qubit calibration method further comprises:
judging whether the quantum bit to be detected meets the execution requirement of the quantum computing task to be executed currently or not based on the stable running time;
if the stable running time meets the execution requirement of the quantum computing task to be executed, the quantum computing task to be executed is distributed to the quantum bit to be executed;
and if the stable running time does not meet the execution requirement of the quantum computing task to be executed, not distributing the quantum computing task to be executed to the quantum bit to be tested.
Optionally, the calibrating the qubit to be measured based on the stable running time includes:
and starting from the initial moment when the quantum bit to be measured starts to work, executing the calibration operation on the quantum bit to be measured every interval of the stable running time.
Based on the same inventive concept, the invention also provides a quantum bit calibration device, comprising:
the stable operation time acquisition module is configured to acquire the stable operation time of the quantum bit to be detected, wherein the stable operation time is the longest time of the quantum bit to be detected without errors in a working state;
a qubit calibration module configured to perform a calibration operation on the qubit under test based on the stable run time.
Based on the same inventive concept, the invention also provides a quantum control system, which performs a calibration operation on the quantum bit by using the quantum bit calibration method described in any one of the above feature descriptions, or comprises the quantum bit calibration device.
Based on the same inventive concept, the invention also provides a quantum computer, which comprises the quantum control system.
Based on the same inventive concept, the present invention also proposes a readable storage medium having stored thereon a computer program which, when executed by a processor, is capable of implementing the qubit calibration method of any of the above-mentioned feature descriptions.
Compared with the prior art, the invention has the following beneficial effects:
according to the quantum bit calibration method, the stable operation time of the quantum bit to be measured is obtained, wherein the stable operation time is the longest time when the quantum bit to be measured is in a working state and does not generate errors; and performing calibration operation on the quantum bit to be measured based on the stable operation time. By utilizing the quantum bit calibration scheme, automatic calibration of the quantum bit can be realized without human intervention, and the calibration operation is automatically carried out on the quantum bit to be measured after the stable running time of the quantum bit to be measured is reached, so that the calibration efficiency and accuracy are effectively improved.
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Fig. 1 is a flow chart of a method for calibrating qubits according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a qubit calibration device according to another embodiment of the present invention;
Detailed Description
Specific embodiments of the present invention will be described in more detail below with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Referring to fig. 1, an embodiment of the present invention provides a method for calibrating qubits, including:
s100: obtaining stable operation time of a quantum bit to be detected, wherein the stable operation time is the longest time of the quantum bit to be detected in a working state without errors;
s200: and performing calibration operation on the quantum bit to be detected based on the stable operation time.
Compared with the prior art, the quantum bit calibration method provided by the embodiment of the invention is characterized by obtaining the stable running time of the quantum bit to be tested, wherein the stable running time is the longest time of the quantum bit to be tested without error in the working state; and performing calibration operation on the quantum bit to be measured based on the stable operation time. By utilizing the quantum bit calibration scheme, automatic calibration of the quantum bit can be realized without human intervention, and the calibration operation is automatically carried out on the quantum bit to be measured after the stable running time of the quantum bit to be measured is reached, so that the calibration efficiency and accuracy are effectively improved.
Specifically, in this embodiment, the calibrating operation is performed on the qubit to be measured based on the stable running time, that is, the step S200 includes:
and starting from the initial moment when the quantum bit to be measured starts to work, executing the calibration operation on the quantum bit to be measured every interval of the stable running time.
Those skilled in the art will appreciate that, in general, a quantum chip needs to go through multiple pre-test stages from development to online use, and cannot be used online until the performance parameters of the quantum chip meet the online requirements. In the early test stage, all the quantum bits in the quantum chip can be tested and calibrated in detail according to a set of test flow, and the stable running time of the quantum bits to be tested can be obtained in the test stage of the quantum chip. Specifically, the obtaining the stable running time of the qubit to be measured may include:
s101: applying a driving signal to the quantum bit to be detected in a first time to enable the quantum bit to be in an operation working state, and obtaining an error rate of the quantum bit to be detected in the first time, wherein the error rate is determined based on the number of times that the quantum bit to be detected executes a quantum computing task and the number of times that an error occurs;
s102: judging whether the error rate exceeds a preset threshold value;
s103: and adjusting the first time based on a judgment result, and returning to execute the application of a driving signal to the quantum bit to be detected in the first time so as to enable the quantum bit to be in an operation working state, and obtaining the error rate of the quantum bit to be detected in the first time until the maximum value of the first time is obtained, wherein the stable operation time is the maximum value of the first time.
In this embodiment, the adjusting the first time based on the determination result, and executing the applying a driving signal to the qubit to be tested in the first time to make the qubit be in a running working state, so as to obtain an error rate of the qubit to be tested in the first time, until a maximum value of the first time is obtained, where the stable running time is the maximum value of the first time, that is, the step S103 specifically includes:
if the error rate is greater than the preset threshold, reducing the first time, and returning to execute the application of a driving signal to the to-be-detected qubit in the first time to enable the qubit to be in an operation working state, so as to obtain the error rate of the to-be-detected qubit in the first time until the error rate is equal to the preset threshold;
if the error rate is smaller than the preset threshold, increasing the first time, and returning to execute the application of a driving signal to the to-be-detected qubit in the first time to enable the qubit to be in an operation working state, so as to obtain the error rate of the to-be-detected qubit in the first time until the error rate is equal to the preset threshold;
and outputting the current first time as the stable running time.
It will be appreciated by those skilled in the art that the increase and decrease of the first time may be adjusted according to a set time threshold, for example, 1 minute each time or 1 minute each time, or the magnitude of the increase or decrease may be adjusted in real time according to the current first time, which is not limited herein, and may be adjusted according to the specific practice. In addition, in this embodiment, the preset threshold value refers to only a specific value, and may be a range of values, and may be specifically selected and adjusted according to actual needs, which is not limited herein.
When the qubit to be measured is in a working state, the stable running time is used for automatically executing the calibration operation on the qubit to be measured at intervals, and the first probability of error occurrence of each qubit parameter of the qubit to be measured can be utilized when the calibration operation is executed, specifically, the qubit calibration method further comprises the following steps:
acquiring a first probability of error of each qubit parameter of the qubit to be detected;
and executing the calibration operation on the quantum bit to be tested based on the first probability.
It can be understood by those skilled in the art that the first probability of each parameter of the qubit to be tested that an error occurs can be obtained by a large amount of test data in the early test process of the quantum chip, and the first probability can be obtained by counting the ratio of the number of times that each parameter of the qubit to be tested has an error and the total number of times of the test in the test process.
Specifically, in this embodiment, the performing, based on the first probability, the calibration operation on the qubit to be measured includes:
acquiring a first directed acyclic graph, wherein the first directed acyclic graph is used for representing a plurality of quantum bit parameters of a quantum bit to be detected and the dependency relationship among the plurality of quantum bit parameters;
and performing the calibration operation on the quantum bit to be measured based on the first directed acyclic graph and the first probability.
Specifically, the performing the calibration operation on the qubit to be measured based on the first directed acyclic graph and the first probability includes:
and acquiring the quantum bit parameter corresponding to the first probability maximum value as a first parameter, and starting traversing calibration from the node corresponding to the first parameter to the front or back in the first directed acyclic graph.
Because the requirements of each quantum computing task on the quantum bit are different, when a specific quantum computing task is executed, whether the current quantum computing task is distributed into the quantum bit to be tested or not can be determined according to the stable running time of the quantum bit to be tested, and specifically, the quantum bit calibration method further comprises the following steps:
judging whether the quantum bit to be detected meets the execution requirement of the quantum computing task to be executed currently or not based on the stable running time;
if the stable running time meets the execution requirement of the quantum computing task to be executed, the quantum computing task to be executed is distributed to the quantum bit to be executed;
and if the stable running time does not meet the execution requirement of the quantum computing task to be executed, not distributing the quantum computing task to be executed to the quantum bit to be tested.
Based on the same inventive concept, an embodiment of the present invention further provides a qubit calibration device, please refer to fig. 2, wherein the qubit calibration device includes:
a steady operation time obtaining module 10 configured to obtain a steady operation time of a qubit to be measured, wherein the steady operation time is a longest time that the qubit to be measured does not have an error in a working state;
a qubit calibration module 20 configured to perform a calibration operation on the qubit under test based on the stable run time.
It will be appreciated that the steady run time acquisition module 10 and the qubit calibration module 20 may be combined in one device or any one of them may be split into a plurality of sub-modules, or that at least part of the functions of one or more of the steady run time acquisition module 10 and the qubit calibration module 20 may be combined with at least part of the functions of the other modules and implemented in one functional module. According to embodiments of the present invention, at least one of the steady run time acquisition module 10 and the qubit calibration module 20 may be implemented at least in part as hardware circuitry, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), a system on a chip, a system on a substrate, a system on a package, an Application Specific Integrated Circuit (ASIC), or any other reasonable way of integrating or packaging circuitry, or in hardware or firmware, or in a suitable combination of three implementations of software, hardware, and firmware. Alternatively, at least one of the steady run time acquisition module 10 and the qubit calibration module 20 may be at least partially implemented as a computer program module, which when executed by a computer, may perform the functions of the respective module.
Based on the same inventive concept, the embodiment of the invention also provides a quantum control system, which performs a calibration operation on the quantum bit by using the quantum bit calibration method described in any one of the above feature descriptions, or comprises the quantum bit calibration device described in the above feature descriptions.
Based on the same inventive concept, the embodiment of the invention also provides a quantum computer, which comprises the quantum control system described in the above characteristic description.
Based on the same inventive concept, the embodiments of the present invention also provide a readable storage medium having stored thereon a computer program, which when executed by a processor, is capable of implementing the qubit calibration method of any one of the above feature descriptions.
The readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device, such as, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the preceding. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. The computer program described herein may be downloaded from a readable storage medium to a respective computing/processing device or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface card or network interface in each computing/processing device receives the computer program from the network and forwards the computer program for storage in a readable storage medium in the respective computing/processing device. Computer programs for carrying out operations of the present invention may be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, c++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer program may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing electronic circuitry, such as programmable logic circuits, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information for a computer program, which can execute computer-readable program instructions.
Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, systems, and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer programs. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the programs, when executed by the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer programs may also be stored in a readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the readable storage medium storing the computer program includes an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer program may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the computer program which is executed on the computer, other programmable apparatus or other devices implements the functions/acts specified in the flowchart and/or block diagram block or blocks.
In the description of the present specification, a description of the terms "one embodiment," "some embodiments," "examples," or "particular examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the invention without departing from the scope of the technical solution of the invention, and the technical solution of the invention is not departing from the scope of the invention.

Claims (11)

1. A method of qubit calibration, comprising:
obtaining stable operation time of a quantum bit to be detected, wherein the stable operation time is the time when the error rate of the quantum bit to be detected in an operation working state is equal to a preset threshold value, and the error rate is determined based on the number of times that the quantum bit to be detected executes quantum computing tasks and the number of times that errors occur;
and starting from the initial moment when the quantum bit to be measured starts to work, executing the calibration operation on the quantum bit to be measured every interval of the stable running time.
2. The qubit calibration method of claim 1, wherein the obtaining the stable run time of the qubit to be measured comprises:
applying a driving signal to the quantum bit to be detected in a first time to enable the quantum bit to be in an operation working state, and obtaining an error rate of the quantum bit to be detected in the first time, wherein the error rate is determined based on the number of times that the quantum bit to be detected executes a quantum computing task and the number of times that an error occurs;
judging whether the error rate exceeds a preset threshold value;
and adjusting the first time based on a judgment result, and returning to execute the application of a driving signal to the quantum bit to be detected in the first time so as to enable the quantum bit to be in an operation working state, and obtaining the error rate of the quantum bit to be detected in the first time until the maximum value of the first time is obtained, wherein the stable operation time is the maximum value of the first time.
3. The qubit calibration method of claim 2 wherein the adjusting the first time based on the determination result and returning to perform the applying a driving signal to the qubit to be measured in the first time to make the qubit be in an operational state, obtaining an error rate of the qubit to be measured in the first time until the maximum value of the first time is obtained, the stabilizing the operation time being the maximum value of the first time comprises:
if the error rate is greater than the preset threshold, reducing the first time, and returning to execute the application of a driving signal to the to-be-detected qubit in the first time to enable the qubit to be in an operation working state, so as to obtain the error rate of the to-be-detected qubit in the first time until the error rate is equal to the preset threshold;
if the error rate is smaller than the preset threshold, increasing the first time, and returning to execute the application of a driving signal to the to-be-detected qubit in the first time to enable the qubit to be in an operation working state, so as to obtain the error rate of the to-be-detected qubit in the first time until the error rate is equal to the preset threshold;
and outputting the current first time as the stable running time.
4. The qubit calibration method of claim 1, wherein the qubit calibration method further comprises:
acquiring a first probability of error of each qubit parameter of the qubit to be detected;
and executing the calibration operation on the quantum bit to be tested based on the first probability.
5. The qubit calibration method of claim 4, wherein the performing the calibration operation on the qubit under test based on the first probability comprises:
acquiring a first directed acyclic graph, wherein the first directed acyclic graph is used for representing a plurality of quantum bit parameters of a quantum bit to be detected and the dependency relationship among the plurality of quantum bit parameters;
and performing the calibration operation on the quantum bit to be measured based on the first directed acyclic graph and the first probability.
6. The qubit calibration method of claim 5, wherein the performing the calibration operation on the qubit to be measured based on the first directed acyclic graph and the first probability comprises:
and acquiring the quantum bit parameter corresponding to the first probability maximum value as a first parameter, and starting traversing calibration from the node corresponding to the first parameter to the front or back in the first directed acyclic graph.
7. The qubit calibration method of claim 1, wherein the qubit calibration method further comprises:
judging whether the quantum bit to be detected meets the execution requirement of the quantum computing task to be executed currently or not based on the stable running time;
if the stable running time meets the execution requirement of the quantum computing task to be executed, the quantum computing task to be executed is distributed to the quantum bit to be executed;
and if the stable running time does not meet the execution requirement of the quantum computing task to be executed, not distributing the quantum computing task to be executed to the quantum bit to be tested.
8. A qubit calibration device, comprising:
the stable running time acquisition module is configured to acquire the stable running time of the quantum bit to be detected, wherein the stable running time is the time when the error rate of the quantum bit to be detected in a running working state is equal to a preset threshold value, and the error rate is determined based on the number of times the quantum bit to be detected executes quantum computing tasks and the number of times errors occur;
a qubit calibration module configured to perform the calibration operation on the qubit under test at each interval of the steady run time from an initial time at which the qubit under test starts to operate.
9. A quantum control system, characterized in that a qubit is subjected to a calibration operation using the qubit calibration method according to any one of claims 1 to 7, or that it comprises the qubit calibration device according to claim 8.
10. A quantum computer comprising the quantum control system of claim 9.
11. A readable storage medium having stored thereon a computer program, which when executed by a processor is capable of implementing the qubit calibration method of any one of claims 1 to 7.
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