Google Inc.

Jonathan Arthur Gross

Austin Greig Fowler

Zhang Jiang

Wojtek Jerzy Mruczkiewicz

Dripto Mazumdar Debroy

Systems and methods for tracking errors in a quantum computing system are provided. In one example, a method can include matching data associated with one or more detection events associated with a quantum computing system using a successive pattern structure comprising a plurality of processing layers. Each processing layer in the plurality of processing layers can be associated with a pattern including a plurality of sections. Each section can be associated with a processing unit operable to match one or more detection events near a center of the section. The method can include tracking one or more errors of a quantum computing system based at least in part on a matching of one or more detection events.

Low latency scalable parallel streaming matching for quantum computing systems

The disclosure is directed to characterizing a quantum logic circuit (QLC), via a set of intrinsic parameters. One method includes selecting control vectors that are associated with phase shifts for the intrinsic parameters such that experimental unitary operators for the QLC are defined. Each experimental unitary operator is based on the intrinsic parameters and phase shifts associated with a corresponding control vector. For each control vector, eigenvalues for the corresponding unitary operator are estimated based on qubit measurements performed subsequent to tuning the QLC in accordance with the control vector. The eigenvalues correspond to quasienergy levels of the qubits. Values for the set of intrinsic parameters may be determined based on the eigenvalues.

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Venice, CA, United States of America

Jonathan Arthur Gross