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Science. 2007 Apr 27;316(5824):579-82.

Environment-induced sudden death of entanglement.

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1
Instituto de FĂ­sica, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro RJ 21941-972, Brazil.

Abstract

We demonstrate the difference between local, single-particle dynamics and global dynamics of entangled quantum systems coupled to independent environments. Using an all-optical experimental setup, we showed that, even when the environment-induced decay of each system is asymptotic, quantum entanglement may suddenly disappear. This "sudden death" constitutes yet another distinct and counterintuitive trait of entanglement.

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PMID:
17463284
DOI:
10.1126/science.1139892
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