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Stationary quantum correlations in Tavis–Cumming model induced by continuous dephasing process

Stationary quantum correlations in Tavis–Cumming model induced by continuous dephasing process We investigate the dynamics of quantum correlations for the Tavis–Comming model in continuous dephasing process. It is shown that quantum discord and entanglement can reach stationary value, and quantum Zeno effect occurs in strong-coupling region. Furthermore, we explore the influence of continuous dephasing process on the trace distance between two marginal states of the two atoms and find that the trace distance also achieve a constant value during time evolution. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Stationary quantum correlations in Tavis–Cumming model induced by continuous dephasing process

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References (33)

Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
DOI
10.1007/s11128-013-0596-7
Publisher site
See Article on Publisher Site

Abstract

We investigate the dynamics of quantum correlations for the Tavis–Comming model in continuous dephasing process. It is shown that quantum discord and entanglement can reach stationary value, and quantum Zeno effect occurs in strong-coupling region. Furthermore, we explore the influence of continuous dephasing process on the trace distance between two marginal states of the two atoms and find that the trace distance also achieve a constant value during time evolution.

Journal

Quantum Information ProcessingSpringer Journals

Published: May 31, 2013

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