Experimental test of the quantum non-Gaussian character of a heralded single-photon state

Experimental test of the quantum non-Gaussian character of a heralded single-photon state

We report on the experimental verification of quantum non-Gaussian character of a heralded single-photon state with a positive Wigner function. We unambiguously demonstrate that the generated state cannot be expressed as a mixture of Gaussian states. Sufficient information to witness the quantum non...

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Bibliographic Details
Published in:Physical review letters Vol. 107; no. 21; p. 213602
Main Authors: Ježek, Miroslav, Straka, Ivo, Mičuda, Michal, Dušek, Miloslav, Fiurášek, Jaromír, Filip, Radim
Format: Journal Article
Language:English
Published: United States 18-11-2011
Online Access:Get full text
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Summary:We report on the experimental verification of quantum non-Gaussian character of a heralded single-photon state with a positive Wigner function. We unambiguously demonstrate that the generated state cannot be expressed as a mixture of Gaussian states. Sufficient information to witness the quantum non-Gaussian character is obtained from a standard photon anticorrelation measurement.
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ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.107.213602