Witnessing Entanglement of EPR States With Second-Order Interference
Quantum Physics
2009-11-11 v2
Abstract
The separability of the continuous-variable EPR state can be tested with Hanbury-Brown and Twiss type interference. The second-order visibility of such interference can provide an experimental test of entanglement. It is shown that time-resolved interference leads to the Hong, Ou and Mandel deep, that provides a signature of quantum non-separability for pure and mixed EPR states. A Hanbury-Brown and Twiss type witness operator can be constructed to test the quantum nature of the EPR entanglement.
Keywords
Cite
@article{arxiv.quant-ph/0508146,
title = {Witnessing Entanglement of EPR States With Second-Order Interference},
author = {Magdalena Stobińska and Krzysztof Wódkiewicz},
journal= {arXiv preprint arXiv:quant-ph/0508146},
year = {2009}
}
Comments
9 pages, 5 figures