Tunable microwave resonator for qubit circuits
AssigneeInternational Business Machines Corporation
InventorsDavid C. Mckay, Jay M. Gambetta, Jerry M. Chow
Life of this patent
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Abstract
In an embodiment, a quantum circuit (circuit) includes a first qubit and a second qubit. In an embodiment, a quantum circuit includes a tunable microwave resonator, wherein a first applied magnetic flux is configured to tune the microwave resonator to a first frequency, the first frequency configured to activate an interaction between the first qubit and the second qubit, and wherein a second applied magnetic flux is configured to tune the microwave resonator to a second frequency, the second frequency configured to minimize an interaction between the first qubit and the second qubit.
Claims19
A quantum circuit (circuit) comprising:
- a first qubit;
- a second qubit;
- a tunable microwave resonator;
- and
- an asymmetric superconducting quantum interference device (SQUID) loop, wherein a magnetic flux is applied to the SQUID loop to tune the microwave resonator to a microwave frequency within a threshold range of a resonance frequency to minimize an unintended interaction between the first qubit and the second qubit.
A method comprising:
- configuring a first qubit, the first qubit including a first resonance frequency;
- configuring a second qubit, the second qubit including a second resonance frequency;
- configuring a tunable microwave resonator;
- and
- configuring an asymmetric superconducting quantum interference device (SQUID) loop, wherein a magnetic flux is applied to the SQUID loop to tune the microwave resonator to a microwave frequency within a threshold range of a resonance frequency to minimize an unintended interaction between the first qubit and the second qubit.
A circuit fabrication system performing operations comprising:
- configuring a first qubit, the first qubit including a first resonance frequency;
- configuring a second qubit, the second qubit including a second resonance frequency;
- configuring a tunable microwave resonator;
- and
- configuring an asymmetric superconducting quantum interference device (SQUID) loop, wherein a magnetic flux is applied to the SQUID loop to tune the microwave resonator to a microwave frequency within a threshold range of a resonance frequency to minimize an unintended interaction between the first qubit and the second qubit.
Dependencies are inferred from the claim text.