Probing the negative Wigner function of a pulsed single photon point by point
Quantum Physics
2010-12-24 v2
Abstract
We investigate quantum properties of pulsed light fields point by point in phase space. We probe the negative region of the Wigner function of a single photon generated by the means of waveguided parametric down-conversion. This capability is achieved by employing loss-tolerant photon-number resolving detection, allowing us to directly observe the oscillations of the photon statistics in dependence of applied displacements in phase space. Our scheme is highly mode sensitive and can reveal the single-mode character of the signal state.
Keywords
Cite
@article{arxiv.1010.1208,
title = {Probing the negative Wigner function of a pulsed single photon point by point},
author = {Kaisa Laiho and Katiuscia N. Cassemiro and David Gross and Christine Silberhorn},
journal= {arXiv preprint arXiv:1010.1208},
year = {2010}
}
Comments
4 pages, 4 figures