nt - p h / 03 08 12 6 v 1 2 5 A ug 2 00 3 Entanglement and nonlocality versus spontaneous emission in two – atom system
نویسندگان
چکیده
We study evolution of entanglement of two two-level atoms in the presence of dissi-pation caused by spontaneous emission. We find explicit formulas for the amount of entanglement as a function of time, in the case of destruction of the initial entanglement and possible creation of a transient entanglement between atoms. We also discuss how spontaneous emission influences nonlocality of states expressed by violation of Bell-CHSH inequality. It is shown that evolving system very quickly becomes local, even if entanglement is still present or produced.
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