Tailoring multi-qubit measurement operators through dynamic cavity states (Part 2)

ORAL

Abstract

Recent improvements in cavity coherence in cQED have allowed high precision manipulation of photonic cavity states, illustrating a powerful toolbox for manipulating and encoding quantum information in either superconducting qubits or cavity states. In order for this architecture to become a viable system for computation, it will be necessary to have the flexibility to probe both global as well as limited properties of a register of qubits. In particular, the ability to tailor measurement operators is a technology that will be required for error correction. Extending the theoretical framework discussed in the previous talk, we will show experimental work toward realizing this goal. Our design consists of a register of qubits coupled to a high Q storage cavity and ancilla qubit enabled fast readout through a low Q cavity.

*Work supported by IARPA and ARO

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Authors

  • K. Chou

    • Departments of Applied Physics and Physics, Yale University

  • Jacob Blumoff

    • Departments of Applied Physics and Physics, Yale University
    • Departments of Physics and Applied Physics, Yale University
    • Yale Univ. Depts. of Applied Physics and Physics

  • S. Nigg

    • Department of Physics, University of Basel

  • M. Reed

    • HRL Laboratories

  • B. Vlastakis

    • Departments of Applied Physics and Physics, Yale University

  • R. Heeres

    • Departments of Applied Physics and Physics, Yale University

  • L. Frunzio

    • Departments of Applied Physics and Physics, Yale University

  • S. Girvin

    • Departments of Applied Physics and Physics, Yale University

  • M.H. Devoret

    • Departments of Applied Physics and Physics, Yale University

  • R.J. Schoelkopf

    • Departments of Applied Physics and Physics, Yale University