https://doi.org/10.1140/epjp/s13360-023-04162-3
Regular Article
Single-photon router utilizing whispering-gallery resonator coupled with atoms
1
School of Physics, Electronics and Intelligent Manufacturing, Huaihua University, 418008, Huaihua, China
2
Research Center for Information Technological Innovation, Huaihua University, 418008, Huaihua, China
a
hhshizhengang@126.com
b
hnsxw617@163.com
Received:
2
March
2023
Accepted:
3
June
2023
Published online:
27
June
2023
We examine the routing scheme of single photons in a photonic quantum network. The configuration of the proposed router consists of two one-dimensional waveguides and a whispering-gallery-mode resonator interacting with two-level atoms. The study shows that the quantum interference caused by atoms can be used to control the transport of a single photon in the waveguides. When only one atom is considered, by adjusting the amplitude of the intermode backscattering strength and the position of the atom, perfect transmission and reflection of single photon can be realized. For the case of two atoms, by properly designing the distance between the two atoms, nonresonant photon inputting from one port of the first waveguide can be deterministically transferred to one of the selected output ports of the second waveguide. We also examine how the routing properties are influenced by the losses of the atoms and resonator.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
