Experimental test of quantum non-Gaussianity of heralded single photon state

Details Experimental test of quantum non-Gaussianity of heralded single photon state Experimental test of quantum non-Gaussianity of heralded single photon state

2011-07-21

arxiv.org/abs/1107.4305v1

Physical Review Letters 107, 213602 (2011)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.107.213602

We report on experimental verification of quantum non-Gaussianity of a heralded single photon state with positive Wigner function. We unambiguously demonstrate that the generated state cannot be expressed as a mixture of Gaussian states. A sufficient information to witness the quantum non-Gaussianity is obtained from a standard photon anti-correlation measurement.

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