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arXiv · 0804.4167

Effects of decoherence and errors on Bell-inequality violation

Abraham G. Kofman
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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.

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Abraham G. Kofman. 2008-04-28. Effects of decoherence and errors on Bell-inequality violation. https://doi.org/10.1007/s11128-011-0242-1

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