Abstract
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.
- Received 22 July 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.213602
© 2011 American Physical Society