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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Acknowledgments
This work is supported by the National Natural Science Foundation of China (Grant Nos. 11574022 and 11174024) and the Open Fund of IPOC (BUPT) Grant No. IPOC2013B007, also supported by the Open Project Program of State Key Laboratory of Low-Dimensional Quantum Physics (Tsinghua University) Grant No. KF201407, and Beijing Higher Education (Young Elite Teacher Project) YETP 1141 and the Fundamental Research Funds for the Central Universities of Beihang University (Grant No. YWF-15-WLXY-013).
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Ma, SQ., Zhang, GF. The transport character of quantum state in one-dimensional coupled-cavity arrays: effect of the number of photons and entanglement degree. Quantum Inf Process 15, 1499–1512 (2016). https://doi.org/10.1007/s11128-015-1214-7
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DOI: https://doi.org/10.1007/s11128-015-1214-7