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Multipexed Photon Number Measurement

ORAL

Abstract

A single superconducting qubit can reveal the number of photons in a dispersively coupled resonator through a continuous measurement. The trick consists in using many frequency modes of a transmission line to encode the occupancy of each Fock state [1,2]. The qubit thus provides a multiplexed quantum measurement of the photon number. In this talk, I will report on our progress on performing this measurement in a single shot manner using state-of-the-art microwave engineering techniques.
1. A Essig, et al. Multipexed Photon Number Measurement. arXiv:2001.03217
2. A. Sarlette, et al.Quantum adiabatic elimination at arbitrary order for photon number measurement. arXiv:2001.02550

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Presenters

  • Antoine Essig

    Université Lyon, ENS de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon, France, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon,France

Authors

  • Antoine Essig

    Université Lyon, ENS de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon, France, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon,France

  • Quentin Ficheux

    University of Maryland, College Park, University of Maryland, Ecole Normale Superieure de Lyon, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon,France

  • Alain Sarlette

    QUANTIC team, INRIA de Paris, 2 Rue Simone Iff, 75012 Paris, France

  • Pierre Rouchon

    MINES ParisTech, Centre Automatique et Systèmes, MinesParisTech, Centre Automatique et Systèmes, Mines-ParisTech, PSL Research University,60, bd Saint-Michel, 75006 Paris, France

  • Audrey Bienfait

    University of Chicago, Université Lyon, ENS de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon, France, ENS de Lyon, Ecole Normale Superieure de Lyon, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon, France, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon,France

  • Benjamin Huard

    Université Lyon, ENS de Lyon, Université Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon, France, ENS de Lyon, ENS Lyon, Ecole Normale Superieure de Lyon, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon, France, Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique,F-69342 Lyon,France