SYSTEMS, METHODS AND APPARATUS FOR ACTIVE COMPENSATION OF QUANTUM PROCESSOR ELEMENTS
- 申请公布号：
- US2015379418(A1)
- 申请号：
- US201514846334
- 申请日期：
- 2015.09.04
- 申请公布日期：
- 2015.12.31
- 申请人：
- D-Wave Systems Inc.
- 发明人：
- Harris Richard G.;Berkley Andrew J.;Johansson Jan;Johnson Mark;Amin Mohammad;Bunyk Paul I.
- 分类号：
- G06N99/00;H01L27/18;H01L39/22
- 主分类号：
- G06N99/00
- 地址：
- Burnaby CA
- 摘要：
- Apparatus and methods enable active compensation for unwanted discrepancies in the superconducting elements of a quantum processor. A qubit may include a primary compound Josephson junction (CJJ) structure, which may include at least a first secondary CJJ structure to enable compensation for Josephson junction asymmetry in the primary CJJ structure. A qubit may include a series LC-circuit coupled in parallel with a first CJJ structure to provide a tunable capacitance. A qubit control system may include means for tuning inductance of a qubit loop, for instance a tunable coupler inductively coupled to the qubit loop and controlled by a programming interface, or a CJJ structure coupled in series with the qubit loop and controlled by a programming interface.
- 主权项：
- 1. A quantum processor comprising:
a first qubit having a first characteristic associated with a parameter; a second qubit having a second characteristic associated with the parameter, wherein the first characteristic of the first qubit is different from the second characteristic of the second qubit; a coupling system selectively configurable to provide communicative coupling between the first qubit and the second qubit; and at least one device that is selectively operable to tune the parameter of the first qubit such that the first characteristic of the first qubit matches the second characteristic of the second qubit.
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