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Unconditional generation of bright coherent non-Gaussian light from exciton-polariton condensates

Tim Byrnes, Yoshihisa Yamamoto, and Peter van Loock
Phys. Rev. B 87, 201301(R) – Published 13 May 2013


Exciton-polariton condensates are considered as a deterministic source of bright, coherent non-Gaussian light. Exciton-polariton condensates emit coherent light via photoluminescence through the microcavity mirrors due to the spontaneous formation of coherence. Unlike conventional lasers which emit coherent Gaussian light, polaritons possess a natural nonlinearity due to the interaction of the excitonic component. This produces light with a negative component to the Wigner function at steady-state operation when the phase is stabilized via a suitable method such as injection locking. In contrast to many other proposals for sources of non-Gaussian light, in our case, the light typically has an average photon number exceeding one and emerges as a continuous wave. Such a source may have uses in continuous-variable quantum information and communication.

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  • Received 2 November 2012


©2013 American Physical Society

Authors & Affiliations

Tim Byrnes1, Yoshihisa Yamamoto1,2, and Peter van Loock3

  • 1National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan
  • 2E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA
  • 3Institute of Physics, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany

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Vol. 87, Iss. 20 — 15 May 2013

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