US 11,948,045 B2
In-situ quantum error correction
Julian Shaw Kelly, Santa Barbara, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Apr. 20, 2023, as Appl. No. 18/304,253.
Application 16/905,372 is a division of application No. 15/774,028, granted, now 10,692,009, issued on Jun. 23, 2020, previously published as PCT/US2015/059481, filed on Nov. 6, 2015.
Application 18/304,253 is a continuation of application No. 17/401,798, filed on Aug. 13, 2021, granted, now 11,651,265.
Application 17/401,798 is a continuation of application No. 16/905,372, filed on Jun. 18, 2020, granted, now 11,106,992, issued on Aug. 31, 2021.
Prior Publication US 2023/0267355 A1, Aug. 24, 2023
Int. Cl. G06F 11/07 (2006.01); G06F 11/08 (2006.01); G06N 10/00 (2022.01); G06N 99/00 (2019.01); H01L 29/66 (2006.01); H10N 60/80 (2023.01)
CPC G06N 10/00 (2019.01) [G06F 11/0751 (2013.01); G06F 11/0787 (2013.01); G06F 11/08 (2013.01); G06N 99/00 (2013.01); H01L 29/66977 (2013.01); H10N 60/805 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A quantum computational system, comprising an error corrector subsystem in data communication with a quantum computer running an error correction procedure on data qubits and measurement qubits, wherein the error corrector subsystem is configured to:
monitor error detection events that indicate a presence of errors occurring on the data qubits or measurement qubits, wherein the data qubits and measurement qubits are partitioned into a plurality of patterns and errors attributable to each pattern are non-overlapping; and
calibrate, in parallel with the error correction procedure and based on the monitored error detection events, quantum gate parameters that operate on the data qubits or the measurement qubits, comprising:
optimizing, for each of multiple patterns of measurement qubits, quantum gate parameters that operate on measurement qubits included in the pattern, and;
optimizing, for each pattern that includes data qubits and measurement qubits, quantum gate parameters that operate on the data qubits or both the data qubits and measurement qubits.