Finite-time disentanglement via spontaneous emission

Ting Yu, J. H. Eberly

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Abstract

The finite-Time disentanglement Via spontaneous emission is discussed. The two entangled qubits become completely disentangled in a finite-time under the influence of pure vacuum noise. The two-level atoms A and B were coupled indivisually to two cavities which are initially in the vacuum states. The result show that for the physically fundamental and unavoidable process of spontaneous emisson that nonlocal entanglement times are shorter than local decoherence times for arbitrary entangled state either pure or mixed.

Original languageEnglish
Article number140404
Pages (from-to)140404-1-140404-4
JournalPhysical Review Letters
Volume93
Issue number14
DOIs
StatePublished - Oct 1 2004

ASJC Scopus subject areas

  • General Physics and Astronomy

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