Controllable scattering of a single photon inside a one-dimensional resonator waveguide

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 ener...

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Bibliographic Details
Published in:Physical review letters 2008-09, Vol.101 (10), p.100501-100501, Article 100501
Main Authors: Zhou, Lan, Gong, Z R, Liu, Yu-Xi, Sun, C P, Nori, Franco
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.101.100501