- Patent Title: Universal adiabatic quantum computing with superconducting qubits
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Application No.: US16029040Application Date: 2018-07-06
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Publication No.: US11348024B2Publication Date: 2022-05-31
- Inventor: Richard G. Harris , Mohammad H. Amin , Anatoly Smirnov
- Applicant: D-WAVE SYSTEMS INC.
- Applicant Address: CA Burnaby
- Assignee: D-WAVE SYSTEMS INC.
- Current Assignee: D-WAVE SYSTEMS INC.
- Current Assignee Address: CA Burnaby
- Agency: Cozen O'Connor
- Main IPC: G06N10/00
- IPC: G06N10/00 ; H03K3/38 ; H03K19/195 ; G11C11/44

Abstract:
A quantum processor is operable as a universal adiabatic quantum computing system. The quantum processor includes physical qubits, with at least a first and second communicative coupling available between pairs of qubits via an in-situ tunable superconducting capacitive coupler and an in-situ tunable superconducting inductive coupler, respectively. Tunable couplers provide diagonal and off-diagonal coupling. Compound Josephson junctions (CJJs) of the tunable couplers are responsive to a flux bias to tune a sign and magnitude of a sum of a capacitance of a fixed capacitor and a tunable capacitance which is mediated across a pair of coupling capacitors. The qubits may be hybrid qubits, operable in a flux regime or a charge regime. Qubits may include a pair of CJJs that interrupt a loop of material and which are separated by an island of superconducting material which is voltage biased with respect to a qubit body.
Public/Granted literature
- US20180314970A1 UNIVERSAL ADIABATIC QUANTUM COMPUTING WITH SUPERCONDUCTING QUBITS Public/Granted day:2018-11-01
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