期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.200401
关键词
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资金
- Academy of Finland [133682]
- Magnus Ehrnrooth Foundation
- Emil Aaltonen Foundation
- Finnish Cultural Foundation
- Turku Collegium of Science and Medicine
- Academy of Finland (AKA) [133682, 133682] Funding Source: Academy of Finland (AKA)
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.
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