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Unidirectional reflectionlessness in a non-Hermitian quantum system of surface plasmon coupled to two plasmonic cavities

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Abstract

Unidirectional reflectionlessness is investigated in a non-Hermitian quantum system that consists of two plasmonic cavities (PCs) coupled to a plasmonic waveguide. By appropriately adjusting the phase shift and decay rate of two PCs, unidirectional reflectionlessness is obtained at exceptional points. And the bilateral unidirectional reflectionless propagation can be manipulated in a wide range of decay rate. Moreover, high non-reciprocal entanglement between two PCs is obtained under the appropriate phase shift and decay rate of two PCs.

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Acknowledgements

This work is supported by the National Natural Science Foundation of China (Grant Nos. 11364044, 11864043), the Education Department of Jilin Province Science and Technology Research Project (Grant No. JJKH20170455KJ) and the Science and Technology Development Foundation of Jilin Province (Grant No. 20180101342JC).

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Authors and Affiliations

  1. Department of Physics, College of Science, Yanbian University, Yanji, 133002, Jilin, People’s Republic of China

    De-Xiu Qiu, Ruiping Bai, Cong Zhang, Li-Fang Xin, Xin-Yu Zou, Ying Qiao Zhang, Xing Ri Jin, Chengshou An & Shou Zhang

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  1. De-Xiu Qiu
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  2. Ruiping Bai
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  3. Cong Zhang
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Correspondence to Xing Ri Jin.

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Qiu, DX., Bai, R., Zhang, C. et al. Unidirectional reflectionlessness in a non-Hermitian quantum system of surface plasmon coupled to two plasmonic cavities. Quantum Inf Process 18, 28 (2019). https://doi.org/10.1007/s11128-018-2139-8

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