Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session P33: Quantum Control in the Presence of Noise and Decoherence
3:00 PM–6:00 PM,
Wednesday, March 17, 2021
Sponsoring
Unit:
DQI
Chair: Christopher Eichler, Princeton University
Abstract: P33.00009 : Calibration of the Cross-Resonance Gate using Closed-Loop Optimal Control*
5:00 PM–5:12 PM
Live
Presenter:
Brad Mitchell
(University of California, Berkeley)
Authors:
Brad Mitchell
(University of California, Berkeley)
Ravi K. Naik
(University of California, Berkeley)
Alexis Morvan
(Lawrence Berkeley National Laboratory)
Akel Hashim
(University of California, Berkeley)
John Mark Kreikebaum
(Lawrence Berkeley National Laboratory)
David Ivan Santiago
(Lawrence Berkeley National Laboratory)
Irfan Siddiqi
(University of California, Berkeley)
We present a closed-loop, optimization-based protocol to calibrate the cross-resonance gate. To simultaneously calibrate the gate parameters, we use a physically-motivated parameterized ansatz that targets the dominant error sources of the gate. With this protocol, we are able to calibrate several parameters of the gate simultaneously, for multiple pairs of qubits. The efficiency and flexibility of this protocol may simplify the calibration of larger quantum processors that use the cross-resonance gate as a native entangling operation.
*
This work was funded by The Army Research Office.
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