Microwave-based reset of persistent current qubits
US11646734B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | May 16, 2022 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | May 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/92
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for resetting a qubit comprising a superconducting loop and a compound Josephson junction. A first bias flux is provided to the superconducting loop. A second bias flux is provided to the compound Josephson junction. Each of the first bias flux and the second bias flux are provided such that a given excited state of the qubit is near a top of a potential barrier associated with a potential of the qubit. A continuous microwave signal is generated having a frequency equal to a transition frequency between an other excited state of the qubit and the given excited state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.