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Title: Dynamics of quantum discord in the purification process
Authors: Song, W.
Chen, L. 
Yang, M.
Cao, Z.-L.
Keywords: Dynamics process
Quantum discord
Issue Date: 15-Aug-2012
Citation: Song, W., Chen, L., Yang, M., Cao, Z.-L. (2012-08-15). Dynamics of quantum discord in the purification process. Physica A: Statistical Mechanics and its Applications 391 (16) : 4186-4190. ScholarBank@NUS Repository.
Abstract: We investigate the dynamics of quantum discord during the purification process. In the case of Werner states, it is shown that quantum discord is increased after a round of purification protocol. Furthermore, quantum mutual information and classical correlation is also increased during this process. We also give an analytic expression for a class of higher dimensional states which have additive quantum discord. © 2012 Elsevier B.V. All rights reserved.
Source Title: Physica A: Statistical Mechanics and its Applications
ISSN: 03784371
DOI: 10.1016/j.physa.2012.03.024
Appears in Collections:Staff Publications

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