Entangling ability of a beam splitter in the presence of temporal which-path information
Quantum Physics
2009-11-11 v1
Abstract
We calculate the amount of polarization-entanglement induced by two-photon interference at a lossless beam splitter. Entanglement and its witness are quantified respectively by concurrence and the Bell-CHSH parameter. In the presence of a Mandel dip, the interplay of two kinds of which-path information -- temporal and polarization -- gives rise to the existence of entangled polarization-states that cannot violate the Bell-CHSH inequality.
Keywords
Cite
@article{arxiv.quant-ph/0503204,
title = {Entangling ability of a beam splitter in the presence of temporal which-path information},
author = {J. L. van Velsen},
journal= {arXiv preprint arXiv:quant-ph/0503204},
year = {2009}
}
Comments
8 pages including 2 figures