Journal
PHYSICAL REVIEW LETTERS
Volume 101, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.100501
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Funding
- NSFC [90203018, 10474104, 60433050, 10704023]
- NFRPC [2006CB921205, 2005CB724508]
- NSA
- LPS
- ARO
- NSF [EIA-0130383, JSPS-RFBR 06-02-91200]
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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.
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