The transport character of quantum state in one-dimensional coupled-cavity arrays: effect of the number of photons and entanglement degree |
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| Authors: | Shao-Qiang Ma Guo-Feng Zhang |
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| Affiliation: | 1.Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education),School of Physics and Nuclear Energy Engineering, Beihang University,Beijing,China;2.State Key Laboratory of Software Development Environment,Beihang University,Beijing,China;3.State Key Laboratory of Low-Dimensional Quantum Physics,Tsinghua University,Beijing,China;4.Key Laboratory of Quantum Information,University of Science and Technology of China, Chinese Academy of Sciences,Hefei,China |
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| Abstract: | The transport properties of the photons injected into one-dimensional coupled-cavity arrays (CCAs) are studied. It is found that the number of photons cannot change the evolution cycle of the system and the time points at which W states and NOON state are obtained with a relatively higher probability. Transport dynamics in the CCAs exhibits that entanglement-enhanced state transmission is more effective phenomenon, and we show that for a quantum state with the maximum concurrence, it can be transmitted completely without considering the case of photon loss. |
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