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.
@article{arxiv.1107.4305,
title = {Experimental test of quantum non-Gaussianity of heralded single photon state},
author = {Miroslav Jezek and Ivo Straka and Michal Micuda and Miloslav Dusek and Jaromir Fiurasek and Radim Filip},
journal= {arXiv preprint arXiv:1107.4305},
year = {2011}
}