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US 10,380,494 B2Granted
Josephson junctions for improved qubits
AssigneeInternational Business Machines Corporation
InventorsDavid W. Abraham, Josephine B. Chang, Jay M. Gambetta
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Abstract
A technique relates to a superconducting qubit. A Josephson junction includes a first superconductor and a second superconductor formed on a non-superconducting metal. A capacitor is coupled in parallel with the Josephson junction.
Claims13
A superconducting qubit comprising:
- a Josephson junction including a first superconductor and a second superconductor formed on a non-superconducting metal;
- and
- a capacitor in parallel with the Josephson junction;
- wherein an empty gap is between the first superconductor and the second superconductor at a junction region of the Josephson junction.
1 more element
A superconducting qubit comprising:
- a Josephson junction including a non-superconducting metal formed between a first superconductor and a second superconductor;
- and
- a capacitor in parallel with the Josephson junction;
- wherein the non-superconducting metal is formed on top a part of both the first superconductor and the second superconductor;
- and
- wherein the capacitor is formed at a separate location from the Josephson junction.
3 more elements
Dependencies are inferred from the claim text.