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Control of single-photon routing in a T-shaped waveguide by another atom

  • Jin-Song Huang
  • Jing-Wen Wang
  • Yan Wang
  • Yan-Ling Li
  • You-Wen Huang
Article
  • 104 Downloads

Abstract

Quantum routers with a high routing rate of much more than 0.5 are of great importance for quantum networks. We provide a scheme to perform bidirectional high routing-rate transfer in a T-shaped coupled-resonator waveguide (CRW), which extends a recent unidirectional scheme proposed by Lu et al. (Opt Express 23:22955, 2015). By locating an extra two-level atom in the infinite CRW channel of the T-shaped CRW with a three-level system, an effective potential is generated. Our numerical results show that high routing capability from the infinite CRW channel to the semi-infinite channel can be achieved, and routing capability from the semi-infinite CRW channel to the infinite channel can also be significantly enhanced, with the help of the effective potential. Therefore, the proposed double-atom configuration could be utilized as a bidirectional quantum routing controller to implement high transfer rate routing of single photons.

Keywords

Quantum routing Scattering theory Optical waveguide 

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11247032, 11365011), by the Natural Science Foundation of Jiangxi (Grant No. 20151BAB202012), and by the Scientific Research Foundation of Jiangxi University of Science and Technology (Grant No. NSFJ2014-K18).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Information EngineeringJiangxi University of Science and TechnologyGanzhouChina
  2. 2.School of Foreign StudiesJiangxi University of Science and TechnologyGanzhouChina

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