Multi-tunable superconducting circuits
AssigneeInternational Business Machines Corporation
InventorsJerry M. Chow, Antonio D. Corcoles Gonzalez, Jay M. Gambetta, Matthias Steffen
Life of this patent
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Abstract
A tunable superconducting circuit includes a first charge island, a second charge island, a third charge island, a fourth charge island, a first junction loop electrically coupled to the first and third charge islands, a second junction loop coupled to the second and third charge islands and a third junction loop coupled to the third and fourth charge islands, wherein the first, second and third junction loops are tuned in frequency to operate together as a qubit.
Claims20
A tunable superconducting circuit, comprising:
- a first charge island;
- a second charge island;
- a third charge island;
- a fourth charge island;
- a first junction loop electrically coupled to the first and third charge islands;
- a second junction loop coupled to the second and third charge islands;
- and
- a third junction loop coupled to the third and fourth charge islands,
- wherein the first, second and third junction loops are tuned in frequency to operate together as a qubit.
A tunable superconducting circuit system, comprising:
- a first resonator;
- a second resonator;
- and
- a tunable superconducting circuit coupled between the first and second resonators,
- wherein the tunable superconducting circuit includes a non-linear quantum degree of freedom, which independently couples the first and second resonators with coupling strengths that are actively tunable by the tunable superconducting circuit.
A tunable superconducting circuit system, comprising:
- a first resonator;
- a second resonator;
- a tunable superconducting circuit coupled between the first and second resonators, and comprising:
- a first charge island;
- a second charge island;
- a third charge island;
- a fourth charge island;
- a first junction loop electrically coupled to the first and third charge islands;
- a second junction loop coupled to the second and third charge islands;
- and
- a third junction loop coupled to the third and fourth charge islands.
Dependencies are inferred from the claim text.