Effects of decoherence and errors on Bell-inequality violation
Superconductivity
2017-03-28 v2 Quantum Physics
Abstract
We study optimal conditions for violation of the Clauser-Horne-Shimony-Holt form of the Bell inequality in the presence of decoherence and measurement errors. We obtain all detector configurations providing the maximal Bell inequality violation for a general (pure or mixed) state. We consider local decoherence which includes energy relaxation at the zero temperature and arbitrary dephasing. Conditions for the maximal Bell-inequality violation in the presence of decoherence are analyzed both analytically and numerically for the general case and for a number of important special cases. Combined effects of measurement errors and decoherence are also discussed.
Keywords
Cite
@article{arxiv.0804.4167,
title = {Effects of decoherence and errors on Bell-inequality violation},
author = {Abraham G. Kofman},
journal= {arXiv preprint arXiv:0804.4167},
year = {2017}
}
Comments
18 pages, 5 figures