%0 Journal Article
%A Ahumada, M.
%A Orellana, P. A.
%A Domínguez-Adame Acosta, Francisco
%A Malyshev, Andrey
%T Tunable single-photon quantum router
%D 2019
%@ 2469-9926
%U https://hdl.handle.net/20.500.14352/13310
%X We propose an efficient single-photon router comprising two resonator waveguide channels coupled by several sequential cavities with embedded three-level atoms. We show that the system can operate as a perfect four-way single-photon switch. We also demonstrate that an incident single photon propagating in one of the waveguides can be routed into one or the other output channels; such routing can be controlled by the external classical electromagnetic field driving the atoms. We argue that, under appropriate conditions, the efficiency of such routing can be close to 100% within a broad operational bandwidth, suggesting various applications in photonics.
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