Cross-resonance Dynamics with Tunable Transmon Qubits

ORAL

Abstract

The cross-resonance gate is a widely-utilized entangling gate in modern superconducting quantum processors. Recent theoretical work [1] has illustrated that the dynamics of the cross-resonance interaction depend strongly on circuit and control parameters, such as frequency detuning and the effective coupling rate. We experimentally investigate the dynamics of the cross-resonance gate across a range of qubit detuning, intrinsic coupling strength, drive frequency, and compare our findings with the model.

[1] Tripathi, V. et al., Physical Review A 100, no. 1 (July 1, 2019). https://doi.org/10.1103/PhysRevA.100.012301.

*This research was supported by the LPS HiPS program under ARO grant W911NF1810178.

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Presenters

  • Bradley Mitchell

    • University of California, Berkeley
    • Univ of California – Berkeley
    • Univ of California - Berkeley
    • Physics, University of California, Berkeley

Authors

  • Bradley Mitchell

    • University of California, Berkeley
    • Univ of California – Berkeley
    • Univ of California - Berkeley
    • Physics, University of California, Berkeley

  • Ravi Kaushik Naik

    • University of California, Berkeley
    • Physics, University of California, Berkeley

  • Akel Hashim

    • University of California, Berkeley
    • Univ of California - Berkeley

  • John Mark Kreikebaum

    • University of California, Berkeley

  • Irfan Siddiqi

    • University of California, Berkeley
    • Univ of California - Berkeley
    • Univ of California – Berkeley
    • Physics, University of California, Berkeley