CN109840596A - Expansible superconductive quantum bit structure - Google Patents
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- CN109840596A CN109840596A CN201910070950.4A CN201910070950A CN109840596A CN 109840596 A CN109840596 A CN 109840596A CN 201910070950 A CN201910070950 A CN 201910070950A CN 109840596 A CN109840596 A CN 109840596A
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Abstract
The invention discloses a kind of expansible superconductive quantum bit structures, it include: multiple superconductive quantum bit routes, each superconductive quantum bit route includes: at least one Josephson's junction structure, which is the combination that a Josephson junction or multiple Josephson junctions or Josephson junction and auxiliary line are constituted；And the capacitor and inductance being connected directly with Josephson junction；One coupler route, for adjusting the stiffness of coupling between the superconductive quantum bit being connected with coupler, and the stiffness of coupling is adjustable to close or equal to zero；And a cross-line, for connecting the ground of superconductive quantum bit route and coupler route two sides；Wherein, the capacitor being connected directly with Josephson junction be it is multiple, the branched structure that superconductive quantum bit is formed by multiple capacitors is coupled with other circuits.The structure has the advantages that high-precision, high scalability and low crosstalk, the application for promoting Superconducting Quantum to calculate.
Description
Technical field
The disclosure belongs to quantum calculation technical field, is related to a kind of expansible superconductive quantum bit structure.
Background technique
Since the size of transistor chip is smaller and smaller, moves closer to the limit, the operational performance of traditional classical computer
Gradually arrive reach to peak value.Quantum computer potentially substitutes the scheme of existing classic computer, principle and related calculation as one kind
Method is in eighties of last century just by numerous studies, and in the mathematical problems such as big prime factors decomposition, global search, quantum calculation is all
With the solving speed advantage in principle.Scientist has been built up different quantum regimes now, and realizes some letters
Single quantum algorithm, wherein Superconducting Quantum calculating is most promising quantum calculation system.
In quantum computing systems, most important is exactly to realize Hi-Fi single quantum bit door, double quantum bit CZ
Door.In Superconducting Quantum computing system, single quantum bit door can achieve 99.5% or more in existing Xmon design
Fidelity, have reached the requirement of many quantum algorithms.However in existing muliti-qubit system, fixed coupling intensity
Adjacent quantum bit be difficult to complete switch off coupling to each other, therefore the CZ door fidelity of these muliti-qubit systems by
Certain limitation.
Further, muliti-qubit system involved in existing quantum calculation in application process, proposes simultaneous
Care for the requirement of high fidelity and high scalability.
In addition, needing it with good transmission characteristic in the application requirement that Superconducting Quantum calculates, can reduce string
It disturbs.
Therefore, it is necessary to propose a kind of new superconductive quantum bit structure, on the basis of improving the precision of quantum calculation,
The scalability of superconductive quantum bit structure is further improved, and transmission characteristic can be improved, reduces crosstalk, promotes superconduction amount
The application that son calculates.
Summary of the invention
(1) technical problems to be solved
Present disclose provides a kind of expansible superconductive quantum bit structures, at least partly to solve skill set forth above
Art problem.
(2) technical solution
According to one aspect of the disclosure, a kind of expansible superconductive quantum bit structure is provided, comprising: multiple superconductions
Quantum bit route, each superconductive quantum bit route includes: at least one Josephson's junction structure, Josephson's junction structure
The combination constituted for a Josephson junction or multiple Josephson junctions or Josephson junction and auxiliary line；And with about
Se Fusen ties the capacitor and inductance being connected directly；One coupler route, for adjusting the superconductive quantum bit being connected with coupler
Between stiffness of coupling, and the stiffness of coupling is adjustable to close or equal to zero；And a cross-line, for connecting superconductive quantum bit
Route and the ground of coupler route two sides；Wherein, the capacitor being connected directly with Josephson junction is multiple, the Superconducting Quantum ratio
The branched structure that spy is formed by multiple capacitors is coupled with other circuits.
In some embodiments of the present disclosure, superconductive quantum bit is realized by antenna and is motivated.
In some embodiments of the present disclosure, cross-line is also used to connect the ground of antenna two sides, and the ground of all routes is same
One ground, all routes include: multiple superconductive quantum bit routes, coupler route and antenna.
In some embodiments of the present disclosure, cross-line and superconductive quantum bit route, coupler route and antenna two sides
Ground be superconduction connection, superconduction connection are as follows: when superconductive quantum bit is during the entire process of work, cross-line itself and across
All connections on line and ground are all superconducting states.
In some embodiments of the present disclosure, other circuits are one or more of following circuit: reading route, control
Route or superconductive quantum bit route；Control route is used to adjust the parameter of Josephson junction, the control connection power supply,
Power supply is current source or voltage source.
In some embodiments of the present disclosure, expansible superconductive quantum bit structure can extend additional knot to the left or to the right
Structure, the additional structure of the extension are as follows: only include the structure of superconductive quantum bit route, or only include the knot of coupler route
Any combination line construction of structure or superconductive quantum bit and coupler.
In some embodiments of the present disclosure, the connection relationship of the superconductive quantum bit and coupler that are connected with coupler is such as
Under: a coupler is connect with multiple superconductive quantum bits or multiple couplers are connect with multiple superconductive quantum bits, and super
It leads quantum bit and connection is realized by capacitor and coupler.
In some embodiments of the present disclosure, coupler route is a loop, which includes one second Josephson junction,
Second Josephson junction is connected at the capacitor in the superconductive quantum bit route being connected with coupler, the loop also include with
Inductance in the connected superconductive quantum bit route of coupler, and inductance indirectly.
In some embodiments of the present disclosure, superconductive quantum bit route and coupler route meet waveguide design, setting
Impedance is 50 ohm.
In some embodiments of the present disclosure, the connection of all routes is equal in superconductive quantum bit route and coupler route
For superconduction connection；And/or Josephson becomes tunnel knot, microbridge knot, point contact or other presentation Josephson effects
Structure or device；And/or a kind of implementation of cross-line is Superconductor Vacuum bridge, the number of cross-line is one or more, optional
, more cross-line dense distributions.
(3) beneficial effect
It can be seen from the above technical proposal that the expansible superconductive quantum bit structure that the disclosure provides, has following
The utility model has the advantages that
The stiffness of coupling between the superconductive quantum bit being connected with coupler is adjusted using coupler route, and the coupling is strong
Degree is adjustable to the shutdown that can be realized the stiffness of coupling between adjacent quantum bit close or equal to zero, improves double quantum bits
CZ fidelitys, and the branched structure that superconductive quantum bit is formed by multiple capacitors is coupled with other circuits, benefit
The ground of all route two sides is connected with cross-line to reduce crosstalk and line of rabbet joint mode, on the basis for the precision for improving quantum calculation
On, the scalability and transmission characteristic of superconductive quantum bit structure are further improved, there is high-precision, high scalability and low crosstalk
The advantages of, promote the application of Superconducting Quantum calculating.
Detailed description of the invention
Fig. 1 is superconductive quantum bit structural schematic diagram expansible according to shown in one embodiment of the disclosure.
[symbol description]
C11, C12, C13, C21, C22, C23Capacitor；J1, J2, J3Josephson junction；
T1, T2, T3, T11, T12, T13, T14, T21, T22, T23, T24Access point；
L1, L2Inductance；G1, G2, G3, G4, G5Cross-line；
S1, S2, S3Power supply；A1, A2Antenna；
AC1, AC2Alternating current source.
Specific embodiment
Present disclose provides a kind of expansible superconductive quantum bit structures, are adjusted and coupler phase using coupler route
Stiffness of coupling between superconductive quantum bit even, and the stiffness of coupling is adjustable to close or equal to zero, can be realized adjacent amount
The shutdown of stiffness of coupling between sub- bit, the fidelity of double quantum bits CZ of raising, and superconductive quantum bit pass through more
The branched structure that a capacitor is formed is coupled with other circuits, connects the ground of all route two sides using cross-line to reduce string
It disturbs and further improves the extension of superconductive quantum bit structure on the basis of improving the precision of quantum calculation with line of rabbet joint mode
Property and transmission characteristic, have the advantages that high-precision, high scalability and low crosstalk, the application for promoting Superconducting Quantum to calculate.
For the purposes, technical schemes and advantages of the disclosure are more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.In the disclosure, the meaning of " multiple " in claims and specification indicates number
Amount is two or more.
In first exemplary embodiment of the disclosure, a kind of expansible superconductive quantum bit structure is provided.
Fig. 1 is superconductive quantum bit structural schematic diagram expansible according to shown in one embodiment of the disclosure.
Shown in referring to Fig.1, the expansible superconductive quantum bit structure of the disclosure, comprising:
Multiple superconductive quantum bit routes, each superconductive quantum bit route includes: at least one Josephson's junction structure,
Josephson's junction structure is a Josephson junction or multiple Josephson junctions or Josephson junction and auxiliary line structure
At combination；And the capacitor and inductance being connected directly with Josephson junction；
One coupler route, for adjusting the stiffness of coupling between the superconductive quantum bit being connected with coupler, and the coupling
Intensity is closed to be adjustable to close or equal to zero；And
One cross-line, for connecting the ground of superconductive quantum bit route and coupler route two sides to reduce crosstalk and line of rabbet joint mould
Formula；
Wherein, the capacitor being connected directly with Josephson junction be it is multiple, superconductive quantum bit is formed by multiple capacitors
Branched structure is coupled with other circuits.
The expansible superconductive quantum bit structure of the disclosure adjusts the superconduction being connected with coupler using coupler route
Stiffness of coupling between quantum bit, and the stiffness of coupling is adjustable to close or equal to zero, can be realized adjacent quantum bit it
Between stiffness of coupling shutdown, improve the fidelity of double quantum bits CZ, and superconductive quantum bit passes through multiple capacitor shapes
At branched structure coupled with other circuits, the ground of all route two sides is connected using cross-line to reduce crosstalk and the line of rabbet joint
Mode further improves the scalability and transmission of superconductive quantum bit structure on the basis of improving the precision of quantum calculation
Characteristic.
Examples are carried out including 2 superconductive quantum bit routes with expansible superconductive quantum bit structure in the present embodiment；
Wherein, each superconductive quantum bit route is illustrated so that structure is identical, in each superconductive quantum bit route, to include 1
A Josephson's junction structure, and Josephson's junction structure is 1 Josephson junction, and is connected directly with the Josephson junction
3 capacitors and 1 inductance carry out example.
In some embodiments of the present disclosure, the connection relationship of the superconductive quantum bit and coupler that are connected with coupler is such as
Under: a coupler is connect with two or more superconductive quantum bits or multiple couplers connect with multiple superconductive quantum bits
It connects, and the superconductive quantum bit is realized by capacitor and coupler and connected.
It should be noted that in other embodiments, superconductive quantum bit route, coupler route, Josephson's junction
Structure, Josephson junction, capacitor and inductance number can carry out adaptability setting according to the actual situation, do not limit its specific
Number, and the structure between each superconductive quantum bit route may be the same or different.
In the present embodiment, realize that connection carries out example, reference with a coupler and two superconductive quantum bits with capacitor
Shown in Fig. 1, the expansible superconductive quantum bit structure of the present embodiment, comprising: two superconductive quantum bit routes, one of them
Superconductive quantum bit route includes: Josephson junction J1, and with Josephson junction J13 capacitor C being connected directly11、C12、
C13With inductance L1, another superconductive quantum bit route includes: Josephson junction J2, and with the direct phase of Josephson junction J2
3 capacitor C even21、C22、C23With inductance L2；One coupler route is connected with above-mentioned two superconductive quantum bit route, uses
Stiffness of coupling between the superconductive quantum bit that adjusting is connected with coupler, and the stiffness of coupling is adjustable to and is close or equal to
Zero；And cross-line, for connecting the ground of all route two sides to reduce crosstalk and line of rabbet joint mode.
Shown in referring to Fig.1, in the present embodiment, which is a loop, which includes: Josephson junction J3With
The inductance L in superconductive quantum bit route being connected with coupler1With inductance L2, wherein Josephson junction J3It is connected to and coupling
Capacitor C in the connected superconductive quantum bit route of clutch13With capacitor C23Place, access point T as shown in figure 113And T23It is shown；Electricity
Feel L1With inductance L2Ground connection, access point T as shown in figure 13And T4It is connected to shown in ground.
Two superconductive quantum bits pass through Josephson junction J3Inductive coupling is formed, by adjusting Josephson junction J3With electricity
Feel L1, inductance L2The magnetic flux of the coupling loop formed with ground is realized to Josephson junction J3Equivalent inductance adjusting, thus
The stiffness of coupling between two superconductive quantum bits is adjusted, and can be realized the pass of the stiffness of coupling between adjacent quantum bit
It is disconnected, the fidelity of double quantum bits CZ is improved, to improve the precision of quantum calculation.
It should be noted that coupler route is not limited to structure shown in the present embodiment, can be can be realized with other
The structure of above-mentioned function.
In some embodiments of the present disclosure, branched structure and other electricity that superconductive quantum bit is formed by multiple capacitors
Road is coupled, other circuits are one or more of following circuit: reading route, control route or superconductive quantum bit
Route.
Shown in referring to Fig.1, in the expansible superconductive quantum bit structure of the present embodiment, one of superconductive quantum bit
(quantum bit on the left side) is by the inclusion of capacitor C11Branch coupled with other circuits, other circuits can connect in access
Point T11On；Or by the inclusion of capacitor C12Branch coupled with other circuits, other circuits can connect in access point T12
On；Or pass through Josephson junction J1It is coupled with other circuits, other circuits can connect in access point T1Or T14On；Separately
One superconductive quantum bit (quantum bit on the right) is by the inclusion of capacitor C21Branch coupled with other circuits, other electricity
Road can connect in access point T21On；Or by the inclusion of capacitor C22Branch coupled with other circuits, other circuits can
To be connected to access point T22On；Or pass through Josephson junction J2Coupled with other circuits, other circuits can connect in
Access point T2Or T24On.
Wherein, control route is used to adjust the parameter of Josephson junction.In some embodiments of the present disclosure, when superconduction amount
When sub- bit line includes multiple Josephson junctions, each Josephson junction has individually control route or each about plucked instrument
The gloomy knot of husband has multiple control routes, and perhaps multiple Josephson junctions share a control route or multiple Josephson junctions
It arbitrarily arranges in pairs or groups use with multiple control routes.
In the present embodiment, has with each Josephson junction and individually control route as an example, there are three control routes
It is respectively used to adjust Josephson junction J1、J2And J3Parameter, this three control routes pass through access point T respectively1、T2And T5Access
These three Josephson junctions J1、J2And J3For regulating and controlling Josephson junction J in circuit where respectively1、J2And J3Parameter, every
Control the respective power supply S of connection1、S2And S3, power supply S1、S2And S3For current source or voltage source.
Wherein, superconductive quantum bit is realized by antenna and is motivated.In the disclosure, when expansible superconductive quantum bit structure packet
When containing multiple superconductive quantum bits, multiple superconductive quantum bits can be motivated by an antenna or mutiple antennas, wherein Superconducting Quantum
The collocation of bit and antenna is arbitrary, and the number of antenna and the number of superconductive quantum bit may be the same or different.
In the present embodiment, shown referring to Fig.1, two superconductive quantum bits are respectively by antenna A1And A2It is motivated, antenna A1
And A2It is separately connected AC power source AC1And AC2。
In the present embodiment, cross-line is used to connect the ground of all route two sides, and all routes include: superconductive quantum bit line
Road, coupler route and the antenna for motivating superconductive quantum bit, cross-line G as shown in figure 11、G2、G3、G4And G5It is shown,
Cross-line G1And G5It is respectively used to connection active antenna A1And A2The ground of two sides, cross-line G2And G4It is respectively used to connection two superconductions in left and right
The ground of quantum bit route two sides, cross-line G3For connecting the ground of coupler route two sides.
In the present embodiment, the ground of all routes is samely.Particularly, which refers in superconductive quantum bit structure, with
The route that Josephson junction is separated by capacitor.
In the present embodiment, the ground of cross-line and superconductive quantum bit route, coupler route and antenna two sides is superconduction
Connection, superconduction connection are as follows: when superconductive quantum bit is during the entire process of work, cross-line itself and cross-line and ground it is all
Connection is all superconducting state.
In some embodiments of the present disclosure, a kind of implementation of cross-line is Superconductor Vacuum bridge, and the number of the cross-line is
One or more.Optionally, more cross-line dense distributions.
In some embodiments of the present disclosure, superconductive quantum bit route and coupler route meet waveguide design, setting
Impedance is 50 ohm.
In some embodiments of the present disclosure, the branched structure and superconductive quantum bit formed by multiple capacitors carries out coupling
It is located in identical or different plane between the other routes closed；And/or the branched structure formed by multiple capacitors and superconduction
The other routes and superconductive quantum bit that quantum bit is coupled are located on identical or different substrate.
In some embodiments of the present disclosure, expansible superconductive quantum bit structure can extend additional knot to the left or to the right
Structure, the additional structure of the extension are as follows: only include the structure of superconductive quantum bit route, or only include the knot of coupler route
Any combination line construction of structure or superconductive quantum bit and coupler.It should be noted that leftward or rightward extension does not have
There is quantity limitation.
Referring to Fig.1 it is found that access point T can be passed through11、T12、T14、T21、T22、T24Realize the expansible superconductive quantum bit
The two-dimensional expansion of structure or coupling with other circuits, the expansible superconductive quantum bit structure have good high extension
Property.
In the present embodiment, the connection of all routes is superconduction connection in superconductive quantum bit route and coupler route；It can
Choosing, the connection of route is realized using conducting wire, the material of the conducting wire is superconductor；Preferably, which is aluminium.
It should be noted that the material in superconductive quantum bit route and coupler route can be same material or not
Same material can be while prepare or successively prepare.
In the present embodiment, Josephson becomes tunnel knot, microbridge knot, point contact or other presentation Josephson effects
Structure or device.
In the present embodiment, all routes can be prepared on single layer substrate or in two-layer substrate or on multilager base plate, preferably
, circuit base plate is sapphire or is silicon materials.
In conclusion being adjusted present disclose provides a kind of expansible superconductive quantum bit structure using coupler route
The stiffness of coupling between superconductive quantum bit being connected with coupler, and the stiffness of coupling is adjustable to close or equal to zero, it can
It realizes the shutdown of the stiffness of coupling between adjacent quantum bit, improves the fidelity of double quantum bits CZ, and Superconducting Quantum
The branched structure that bit is formed by multiple capacitors is coupled with other circuits, and all route two sides are connected using cross-line
Ground on the basis of improving the precision of quantum calculation, further improves superconductive quantum bit to reduce crosstalk and line of rabbet joint mode
The scalability and transmission characteristic of structure have the advantages that high-precision, high scalability and low crosstalk, promote answering for Superconducting Quantum calculating
With.
It should be noted that word "comprising" or " comprising " do not exclude the presence of element or step not listed in the claims
Suddenly.Word "a" or "an" located in front of the element does not exclude the presence of multiple such elements.
The word of ordinal number such as " first ", " second ", " third " etc. used in specification and claim, with modification
Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element
Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used to enable an element and another tool with certain name
Clear differentiation can be made by having the element of identical name.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ",
" right side " etc. is only the direction with reference to attached drawing, not is used to limit the protection scope of the disclosure.Through attached drawing, identical element by
Same or similar appended drawing reference indicates.When may cause understanding of this disclosure and cause to obscure, conventional structure will be omitted
Or construction.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each open aspect,
Above in the description of the exemplary embodiment of the disclosure, each feature of the disclosure is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
The disclosure of shield requires features more more than feature expressly recited in each claim.More precisely, as following
Claims reflect as, open aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
All as the separate embodiments of the disclosure.
Particular embodiments described above has carried out further in detail the purpose of the disclosure, technical scheme and beneficial effects
Describe in detail it is bright, it is all it should be understood that be not limited to the disclosure the foregoing is merely the specific embodiment of the disclosure
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
Claims (10)
1. a kind of expansible superconductive quantum bit structure, comprising:
Multiple superconductive quantum bit routes, each superconductive quantum bit route includes: at least one Josephson's junction structure, this is about
Se Fusen junction structure is that a Josephson junction or multiple Josephson junctions or Josephson junction and auxiliary line are constituted
Combination；And the capacitor and inductance being connected directly with Josephson junction；
One coupler route, for adjusting the stiffness of coupling between the superconductive quantum bit being connected with coupler, and the coupling is strong
Degree is adjustable to close or equal to zero；And
One cross-line, for connecting the ground of superconductive quantum bit route and coupler route two sides；
Wherein, the capacitor being connected directly with Josephson junction be it is multiple, the superconductive quantum bit is formed by multiple capacitors
Branched structure is coupled with other circuits.
2. expansible superconductive quantum bit structure according to claim 1, wherein the superconductive quantum bit is by antenna
Realize excitation.
3. expansible superconductive quantum bit structure according to claim 2, wherein the cross-line is also used to connect antenna
The ground of two sides, and the ground of all routes is samely, all routes include: multiple superconductive quantum bit routes, coupler line
Road and antenna.
4. expansible superconductive quantum bit structure according to claim 3, wherein the cross-line and the Superconducting Quantum
The ground of bit line, coupler route and antenna two sides is superconduction connection, superconduction connection are as follows: work as superconductive quantum bit
During the entire process of work, all connections on cross-line itself and cross-line and ground are all superconducting states.
5. expansible superconductive quantum bit structure according to claim 1, wherein
Other described circuits are one or more of following circuit: reading route, control route or superconductive quantum bit line
Road；
The control route is used to adjust the parameter of Josephson junction, the control connection power supply, and the power supply is current source
Or voltage source.
6. expansible superconductive quantum bit structure according to claim 1, wherein the expansible Superconducting Quantum ratio
Special structure can extend additional structure, the additional structure of the extension to the left or to the right are as follows: only include the knot of superconductive quantum bit route
Structure perhaps only includes the structure of coupler route or any combination line construction of superconductive quantum bit and coupler.
7. expansible superconductive quantum bit structure according to claim 1 or 6, wherein described to be connected with coupler
The connection relationship of superconductive quantum bit and coupler is as follows:
One coupler is connect with multiple superconductive quantum bits or multiple couplers are connect with multiple superconductive quantum bits, and
The superconductive quantum bit is realized by capacitor and coupler and is connected.
8. expansible superconductive quantum bit structure according to claim 1, wherein the coupler route is a ring
Road, the loop include one second Josephson junction, which is connected to the Superconducting Quantum ratio being connected with coupler
At capacitor in special route, which also includes the inductance in the superconductive quantum bit route being connected with coupler, and inductance it
Indirectly.
9. expansible superconductive quantum bit structure according to claim 1, wherein the superconductive quantum bit route and
Coupler route meets waveguide design, and setting impedance is 50 ohm.
10. expansible superconductive quantum bit structure according to any one of claim 1 to 9, wherein
The connection of all routes is superconduction connection in the superconductive quantum bit route and coupler route；And/or
The Josephson becomes the structure or device of tunnel knot, microbridge knot, point contact or other presentation Josephson effects
Part；And/or
A kind of implementation of the cross-line is Superconductor Vacuum bridge, and the number of the cross-line is one or more, optionally, institute
State more cross-line dense distributions.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138352A (en) * | 2019-06-17 | 2019-08-16 | 合肥本源量子计算科技有限责任公司 | A kind of quantum parameters amplifier |
| CN110472740A (en) * | 2019-08-13 | 2019-11-19 | 北京百度网讯科技有限公司 | A kind of superconducting circuit structure and Superconducting Quantum chip, Superconducting Quantum computer |
| CN110738320A (en) * | 2019-10-11 | 2020-01-31 | 北京百度网讯科技有限公司 | superconducting circuit structure, superconducting quantum chip and superconducting quantum computer |
| CN111091195A (en) * | 2019-12-24 | 2020-05-01 | 北京百度网讯科技有限公司 | Superconducting circuit structure, superconducting quantum chip and superconducting quantum computer |
| CN111260068A (en) * | 2020-01-17 | 2020-06-09 | 中国科学院物理研究所 | Superconducting qubit and superconducting quantum circuit |
| CN111460749A (en) * | 2020-04-23 | 2020-07-28 | 中国科学院上海微系统与信息技术研究所 | Method and circuit for fine optimization of superconducting digital unit |
| CN111931940A (en) * | 2020-07-15 | 2020-11-13 | 北京百度网讯科技有限公司 | High-fidelity superconducting circuit structure, superconducting quantum chip and superconducting quantum computer |
| CN115238901A (en) * | 2022-06-23 | 2022-10-25 | 中国科学院物理研究所 | Capacitance-adjustable coupling unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005302847A (en) * | 2004-04-07 | 2005-10-27 | Nippon Telegr & Teleph Corp <Ntt> | Quantum bit variable coupling element |
| US20090319757A1 (en) * | 2007-04-25 | 2009-12-24 | Andrew Joseph Berkley | Architecture for local programming of quantum processor elements using latching qubits |
| US20100148853A1 (en) * | 2005-04-26 | 2010-06-17 | Harris Richard G | Systems, devices, and methods for controllably coupling qubits |
| CN102437281A (en) * | 2011-12-08 | 2012-05-02 | 南京大学 | Superconduction tunnel junction and preparation method thereof |
| CN107293638A (en) * | 2016-04-05 | 2017-10-24 | 中国科学院物理研究所 | A kind of Josephson's junction device and preparation method thereof |
-
2019
- 2019-01-24 CN CN201910070950.4A patent/CN109840596B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005302847A (en) * | 2004-04-07 | 2005-10-27 | Nippon Telegr & Teleph Corp <Ntt> | Quantum bit variable coupling element |
| US20100148853A1 (en) * | 2005-04-26 | 2010-06-17 | Harris Richard G | Systems, devices, and methods for controllably coupling qubits |
| US20090319757A1 (en) * | 2007-04-25 | 2009-12-24 | Andrew Joseph Berkley | Architecture for local programming of quantum processor elements using latching qubits |
| CN102437281A (en) * | 2011-12-08 | 2012-05-02 | 南京大学 | Superconduction tunnel junction and preparation method thereof |
| CN107293638A (en) * | 2016-04-05 | 2017-10-24 | 中国科学院物理研究所 | A kind of Josephson's junction device and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| KAI XU 等: "Emulating many-body localization with a superconducting quantum processor", 《ARXIV》 * |
| 侯汉强等: "J-C模型在含约瑟夫森结介观电路中的应用", 《聊城大学学报(自然科学版)》 * |
| 毛广丰等: "基于约瑟夫森器件的超导量子比特", 《物理学进展》 * |
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| CN111091195B (en) * | 2019-12-24 | 2023-11-10 | 北京百度网讯科技有限公司 | Superconducting circuit structure, superconducting quantum chip and superconducting quantum computer |
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| CN111260068A (en) * | 2020-01-17 | 2020-06-09 | 中国科学院物理研究所 | Superconducting qubit and superconducting quantum circuit |
| CN111460749B (en) * | 2020-04-23 | 2022-12-06 | 中国科学院上海微系统与信息技术研究所 | Method and circuit for fine optimization of superconducting digital unit |
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| CN111931940A (en) * | 2020-07-15 | 2020-11-13 | 北京百度网讯科技有限公司 | High-fidelity superconducting circuit structure, superconducting quantum chip and superconducting quantum computer |
| CN115238901A (en) * | 2022-06-23 | 2022-10-25 | 中国科学院物理研究所 | Capacitance-adjustable coupling unit |
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