TITLE:
Tunable Multichannel Quantum Routing of Single Photons Based on Single-Mode Microresonators
AUTHORS:
Jinsong Huang, Jinglan Hu, Hongwu Huang
KEYWORDS:
Quantum Routing, Scattering Theory, Optical Waveguide, Microresonators
JOURNAL NAME:
Journal of Modern Physics,
Vol.15 No.4,
March
28,
2024
ABSTRACT: We have suggested a novel multiport quantum router of single photons with reflection feedback, which is formed by three waveguides coupled with four single-mode microresonators. The single-photon routing probabilities of four channels in the coupled system are studied theoretically by applying the real-space approach. Numerical results indicate that unidirectional routing in these output channels can be effectively implemented, and the router is tunable to route desired frequencies into the output ports, by varying the inter-resonator detunings via spinning resonator technology. Therefore, the proposed multichannel system can provide potential applications in optical quantum communication.