Sudden Transition between Classical and Quantum Decoherence

L. Mazzola, J. Piilo, S. Maniscalco

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431 Citations (Scopus)
248 Downloads (Pure)

Abstract

We study the dynamics of quantum and classical correlations in the presence of nondissipative decoherence. We discover a class of initial states for which the quantum correlations, quantified by the quantum discord, are not destroyed by decoherence for times t < <(t)over bar>. In this initial time interval classical correlations decay. For t > (t) over bar, on the other hand, classical correlations do not change in time and only quantum correlations are lost due to the interaction with the environment. Therefore, at the transition time (t) over bar the open system dynamics exhibits a sudden transition from classical to quantum decoherence regime.

Original languageEnglish
Article number200401
Number of pages4
JournalPhysical Review Letters
Volume104
Issue number20
DOIs
Publication statusPublished - 21 May 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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