Session X26: Superconducting Qubits: Coherent Phases in Superconducting Resonators
2:30 PM–5:30 PM, Thursday, March 18, 2010
Room: D136
Sponsoring Unit:
GQI
Chair: Matthias Steffen, IBM
Abstract ID: BAPS.2010.MAR.X26.7
Abstract: X26.00007 : Single-photon switch: Controllable scattering of photons inside a one-dimensional resonator waveguide
3:42 PM–3:54 PM
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Abstract 
Authors:
L. Zhou
(RIKEN Advanced Science Institute, ITP CAS, Hunan Normal Univ., and Univ. of Michigan)
Z.R. Gong
(RIKEN Advanced Science Institute, ITP CAS, Hunan Normal Univ., and Univ. of Michigan)
Y.X. Liu
(RIKEN Advanced Science Institute, ITP CAS, Hunan Normal Univ., and Univ. of Michigan)
C.P. Sun
(RIKEN Advanced Science Institute, ITP CAS, Hunan Normal Univ., and Univ. of Michigan)
F. Nori
(RIKEN Advanced Science Institute, ITP CAS, Hunan Normal Univ., and Univ. of Michigan)
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. References: L. Zhou, Z.R. Gong, Y.X. Liu, C.P. Sun, F. Nori, Controllable scattering of photons inside a one-dimensional resonator waveguide, Phys. Rev. Lett. 101, 100501 (2008). L. Zhou, H. Dong, Y.X. Liu, C.P. Sun, F. Nori, Quantum super-cavity with atomic mirrors, Phys. Rev. A 78, 063827 (2008).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.X26.7