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29 March 2024
 
  » arxiv » 1001.5441

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Sudden transition between quantum and classical decoherence
L. Mazzola ; J. Piilo ; S. Maniscalco ;
Date 30 Jan 2010
AbstractWe study the dynamics of quantum and classical correlations in the presence of 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 $t < ar{t}$. In this initial time interval only classical correlations decay. For $t > ar{t}$, 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 $ar{t}$ the open system dynamics exhibits a sudden transition from classical to quantum decoherence regime.
Source arXiv, 1001.5441
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