Single-Photon Routing for a L-Shaped Channel

Minmin Zhang, Jiao-Jiao Hou, Chun Wu +1 more

J. C. Huang, Jingwen Wang, Yan Wang +2 more

J. C. Huang, Jingwen Wang, Yao Wang +2 more

Abstract We investigate quantum routing in a multi- T -shaped waveguide coupled to driven cyclic three-level systems. Exact expressions of the scattering coefficients for the double- T and triple- T waveguides are obtained by employing the discrete-coordinate scattering and the transfer matrix approach, respectively. Our results show that high transfer-rate routing of single photons from the input infinite channel to the other channels can be effectively implemented in the extended multi- T configuration, in contrast with the single- T waveguide with the transfer of no more than 0.5. The proposed router may be utilized as a scalable quantum device to control single-photon routing.

Jing Lü, Zhihai Wang, Lan Zhou

J. C. Huang, Jingwen Wang, Yao Wang +1 more

Efficiently routing the quantum signals between different channels is essential in a quantum multichannel network. We investigate the quantum routing in a multi-cross-shaped waveguide coupled to driven three-level systems. Numerical results show that the high routing capacity transferring from the input channel to the other channels can be explicitly enhanced by effective reflection potentials. The proposed system may be utilized as a scalable quantum device to control single-photon routing .

J. C. Huang, Ji-Tai Zhong, Yanling Li +2 more