Quantum Validation and Verification Methods for Superconducting Qubits

Abstract

As quantum circuits grow larger we must contend with two critical issues, the combinatorial increase in the number of gate configurations and the exponential increase of the state space. The first issue means that gates must operate in the presence of other qubits (spectators) and/or in parallel with other gates. One aspect of this project is to better understand these errors in multi-qubit settings, prioritize and remove them. The second issue, exponential scaling, means that it becomes intractable to fully characterize multi-qubit devices. Therefore, the challenge is to find new approximate methods and metrics for characterization. Randomized benchmarking is one such method, however, it only gives information for one specific metric (the average Clifford error). This project involves proposing and implementing additional methods based on the specific axis we want to benchmark the device.

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Document Details

Document Type
Technical Report
Publication Date
Sep 21, 2022
Accession Number
AD1228688

Entities

People

  • David C. Mckay

Organizations

  • IBM Thomas J. Watson Research Center

Tags

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Statistical inference.
  • Systems Analysis and Design

Technology Areas

  • Quantum Computing
  • Space