Methods for quantum processing
AssigneeD-Wave Systems Inc.
InventorsJeremy P. Hilton, Yutian Ling
Life of this patent
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Abstract
A method for performing a coupling operation between a quantum device and a qubit is provided. The quantum device is coupled to a superconducting bus. The method includes placing a controllable coupling mechanism into a coupled state, thereby coupling the quantum device and the qubit to each other. The quantum device or the qubit is then tuned for a first period of time. Then the controllable coupling mechanism is placed into an uncoupled state, thereby decoupling the quantum device and the qubit from each other.
Claims25
A method for performing a coupling operation between a quantum device and a qubit, wherein the quantum device is coupled to a superconducting bus, the method comprising:
- placing a controllable coupling mechanism into a coupled state, thereby coupling said quantum device and said qubit to each other;
- tuning the quantum device or the qubit for a first period of time;
- and
- placing the controllable coupling mechanism into an uncoupled state, thereby decoupling said quantum device and said qubit from each other.
A method for performing a coupling operation comprising:
- coupling a qubit and a superconducting bus to each other;
- tuning a characteristic of the superconducting bus for a first period of time;
- and
- uncoupling said qubit and said superconducting bus from each other.
A method for performing a quantum operation between a first qubit and a second qubit, the method comprising:
- performing a first coupling operation between the first qubit and a superconducting bus by setting a first controllable coupling mechanism to a coupled state at a time when the superconducting bus is not coupled with the second qubit;
- and
- performing a second coupling operation between the superconducting bus and the second qubit by setting a second controllable coupling mechanism to a coupled state at a time when the superconducting bus is not coupled with the first qubit.
A method comprising:
- (A) setting a first controllable coupling mechanism to a coupled state, thereby coupling a first superconducting bus segment with a pivot segment;
- (B) performing a first quantum operation between the first superconducting bus segment and the pivot segment;
- (C) setting the first controllable coupling mechanism to an uncoupled state, thereby uncoupling the first superconducting bus segment and the pivot segment from each other;
- (D) setting a second controllable coupling mechanism to a coupled state, thereby coupling the pivot segment with a second superconducting bus segment;
- (E) performing a second quantum operation between the pivot segment and the second superconducting bus segment;
- and
- (F) setting the second controllable coupling mechanism to an uncoupled state, thereby uncoupling the second superconducting bus segment and the pivot segment from each other.
A method comprising:
- 1) coupling a first qubit and a first superconducting bus segment;
- 2) coupling the first superconducting bus segment to a pivot segment, wherein the pivot segment comprises a quantum device;
- 3) performing a first quantum operation between the first qubit and the quantum device at a time when the pivot segment and a second qubit are not coupled to each other;
- 4) uncoupling the first superconducting bus segment and the pivot segment from each other;
- 5) coupling the pivot segment and a second superconducting bus segment to each other;
- 6) coupling the second superconducting bus segment and the second qubit to each other;
- and
- 7) performing a second quantum operation between the quantum device and the second qubit at a time when the pivot segment and the first qubit are not coupled to each other.
Dependencies are inferred from the claim text.