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Restoration of Coherence by Local PT-Symmetric Operator |
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| Authors: | Fan Xiao-Gang Sun Wen-Yang Wang Dong Ye Liu |
| Institution: | 1.School of Physics & Material Science, Anhui University, Hefei, 230601, China ;2.CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, 230026, China ; |
| Abstract: | In this work, we mainly investigate effect of PT-symmetric operation on the dynamics of the relative entropy of coherence for a two-level system within non-Markovian environments, and put forward a feasible physical scheme to recover coherence by means of optimal PT-symmetric operation. The results show that the damaged quantum coherence can be restored to a large extent. Furthermore, the freezing phenomenon of the coherence can be detected by using the optimal PT-symmetric operation strength within the non-Markovian environments. |
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