A controlled-SWAP operation between two bosonic modes

ORAL

Abstract

The coherence and large Hilbert spaces of three-dimensional superconducting microwave cavities make them an attractive platform for building quantum memories. Universal control of a single cavity mode can be accomplished by dispersively-coupling the cavity to a nonlinear mode such as a transmon. Wedding this resource with a bilinear cavity-cavity coupling such as a beamsplitter interaction provides a modular framework for quantum control of multiple cavities. Here we discuss a demonstration of this approach in the form of a Fredkin gate (controlled-SWAP) between a pair of cavities coupled by a three-wave mixing element, in which a transmon provides the control bit for the SWAP.

*This work is supported by the Army Research Office.

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Presenters

  • Benjamin J Chapman

    • Yale University

Authors

  • Benjamin J Chapman

    • Yale University

  • Stijn de Graaf

    • Yale University

  • James D Teoh

    • Yale University

  • Jacob C Curtis

    • Yale University

  • Neel Thakur

    • Yale University

  • Yaxing Zhang

    • Yale University

  • Steven M Girvin

    • Yale University

  • Michel H Devoret

    • Yale University

  • Robert J Schoelkopf

    • Yale University