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Energy transfer and correlation dynamics in a three-quasi-spin-pigment system
Authors:Zhang Yin-Ping  Li Hong-Rong  Fang Ai-Ping  Chen Hao  and Li Fu-Li
Institution:Department of Applied Physics, Xi'an Jiaotong University, Xian 710049, China
Abstract:In this paper, the effects of quantum and classical correlations on the excitation energy transfer in a three-quasi-spin-pigment system are investigated. We first study the dependence of the energy transfer efficiency on various initial correlations of the donor pigments, and find that the initial concurrence is crucial to the efficiency no matter whether the initial states are pure or mixed. We then demonstrate the dynamics of correlations of the system and observe the appearance of sudden death of quantum correlations in the donor pigments. The relation between the energy transfer efficiency and the dynamics of correlations in the donor pigments is also discussed.
Keywords:energy transfer  correlation  quasi-spin-pigment system
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