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Tunable quantum routing via asymmetric intercavity couplings

  • Jin-Song HuangEmail author
  • Jing-Wen Wang
  • Yan-Ling Li
  • Yao Wang
  • You-Wen Huang
Article
  • 83 Downloads

Abstract

Routing efficiently the photon signals between different channels is essential in an optical quantum network. Recent chiral waveguide–emitter coupling techniques are widely applied to improve the routing capabilities in waveguide systems. As a possible alternative, we put forward a proposal to control the quantum routing of photons by adjusting asymmetric intercavity couplings on both sides of a cross-cavity in an X-shaped coupled-resonator waveguide. With the robust and tunable intercavity couplings, high transfer rate between quantum channels and expected probability distributions of two ports in the same output channel can be easily implemented. The asymmetric intercavity coupling may be utilized as a new handle to efficiently control the single-photon routing.

Keywords

Quantum routing Scattering theory Optical waveguide 

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11247032 and 61765007), and Scientific Research Foundation of the Jiangxi Provincial Education Department (Grant Nos. GJJ170556, GJJ170557, and GJJ180424).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

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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