Witnessing Entanglement with Second-Order Interference and Stokes Parameters
Quantum Physics
2010-05-04 v1
Abstract
We propose to use Stokes parameter as an entanglement witness for correlated EPR mixed states of light. Such states can be generated with a beam splitter acting on two mixed squeezed states of light. Stokes witness operators are closely related to the Hanbury-Brown and Twiss interference and can be used to test entanglement in balanced homodyne experiments involving fluctuations of quantum quadratures of the electric field.
Cite
@article{arxiv.quant-ph/0608006,
title = {Witnessing Entanglement with Second-Order Interference and Stokes Parameters},
author = {Magdalena Stobińska and Krzysztof Wódkiewicz},
journal= {arXiv preprint arXiv:quant-ph/0608006},
year = {2010}
}
Comments
10 pages, 2 figure