Invention Grant
- Patent Title: Rapid multi-level qubit reset
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Application No.: US18305152Application Date: 2023-04-21
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Publication No.: US12141661B2Publication Date: 2024-11-12
- Inventor: Kevin Chenghao Miao , Alexander Korotkov , Matthew James McEwen , Rami Barends
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Fish & Richardson P.C.
- Main IPC: G06N10/70
- IPC: G06N10/70 ; G06N10/40

Abstract:
Methods, systems and apparatus for resetting a qubit. In one aspect, an apparatus includes a qubit, wherein the state of the qubit occupies a plurality of levels comprising two computational levels and one or more non-computational levels; a resonator that operates at a resonator frequency; control electronics that control a frequency of the qubit such that during a reset operation the qubit frequency is adjusted from a holding frequency that is lower than the resonator frequency to an idling frequency that is higher than the resonator frequency, and during the adjustment a first derivative of the qubit frequency at a first time is positive, at a second time that occurs after the first time is zero, and at a third time that occurs after the second time is positive, where the qubit frequency achieves the idling frequency at a fourth time that occurs after the third time.
Public/Granted literature
- US20240112059A1 RAPID MULTI-LEVEL QUBIT RESET Public/Granted day:2024-04-04
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