Sudden death of entanglement

Ting Yu, J. H. Eberly

Research output: Contribution to journalReview articlepeer-review

954 Scopus citations

Abstract

A new development in the dynamical behavior of elementary quantum systems is the surprising discovery that correlation between two quantum units of information called qubits can be degraded by environmental noise in a way not seen previously in studies of dissipation. This new route for dissipation attacks quantum entanglement, the essential resource for quantum information as well as the central feature in the Einstein-Podolsky-Rosen so-called paradox and in discussions of the fate of Schrödinger's cat. The effect has been labeled ESD, which stands for early-stage disentanglement or, more frequently, entanglement sudden death. We review recent progress in studies focused on this phenomenon.

Original languageEnglish
Pages (from-to)598-601
Number of pages4
JournalScience
Volume323
Issue number5914
DOIs
StatePublished - 30 Jan 2009

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