Tunable single-photon quantum router

M. Ahumada, P. A. Orellana, F. Domínguez-Adame, and A. V. Malyshev
Phys. Rev. A 99, 033827 – Published 14 March 2019

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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  • Received 24 January 2019

DOI:https://doi.org/10.1103/PhysRevA.99.033827

©2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

M. Ahumada1, P. A. Orellana1, F. Domínguez-Adame2, and A. V. Malyshev2,3

  • 1Departamento de Física, Universidad Técnica Federico Santa María, Casilla 110 V, Valparaíso, Chile
  • 2GISC, Departamento de Física de Materiales, Universidad Complutense, 28040 Madrid, Spain
  • 3Ioffe Physical-Technical Institute, 26 Politechnicheskaya Street, 194021 St. Petersburg, Russia

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Issue

Vol. 99, Iss. 3 — March 2019

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