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arXiv · 1901.08916

A tunable single photon quantum router

M. Ahumada·P. A. Orellana·F. Domínguez-Adame·A. V. Malyshev
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Abstract

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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M. Ahumada, P. A. Orellana, F. Domínguez-Adame, A. V. Malyshev. 2019-01-25. A tunable single photon quantum router. https://doi.org/10.1103/physreva.99.033827

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