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Detector-Independent Verification of Quantum Light

J. Sperling, W. R. Clements, A. Eckstein, M. Moore, J. J. Renema, W. S. Kolthammer, S. W. Nam, A. Lita, T. Gerrits, W. Vogel, G. S. Agarwal, and I. A. Walmsley
Phys. Rev. Lett. 118, 163602 – Published 21 April 2017
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Abstract

We introduce a method for the verification of nonclassical light which is independent of the complex interaction between the generated light and the material of the detectors. This is accomplished by means of a multiplexing arrangement. Its theoretical description yields that the coincidence statistics of this measurement layout is a mixture of multinomial distributions for any classical light field and any type of detector. This allows us to formulate bounds on the statistical properties of classical states. We apply our directly accessible method to heralded multiphoton states which are detected with a single multiplexing step only and two detectors, which are in our work superconducting transition-edge sensors. The nonclassicality of the generated light is verified and characterized through the violation of the classical bounds without the need for characterizing the used detectors.

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  • Received 27 January 2017

DOI:https://doi.org/10.1103/PhysRevLett.118.163602

© 2017 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Atomic, Molecular & Optical

Authors & Affiliations

J. Sperling1,*, W. R. Clements1, A. Eckstein1, M. Moore1, J. J. Renema1, W. S. Kolthammer1, S. W. Nam2, A. Lita2, T. Gerrits2, W. Vogel3, G. S. Agarwal4, and I. A. Walmsley1

  • 1Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom
  • 2National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USA
  • 3Institut für Physik, Universität Rostock, Albert-Einstein-Straße 23, D-18059 Rostock, Germany
  • 4Texas A&M University, College Station, Texas 77845, USA

  • *jan.sperling@physics.ox.ac.uk

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Issue

Vol. 118, Iss. 16 — 21 April 2017

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