corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 101 » Issue 10
< Previous Article | Next Article >

Phys. Rev. Lett. 101, 100501 (2008) [4 pages]

Controllable Scattering of a Single Photon inside a One-Dimensional Resonator Waveguide

Download: PDF (540 kB) Buy this article Export: BibTeX or EndNote (RIS)

Lan Zhou (周兰)1,2, Z. R. Gong (龚志瑞)3, Yu-xi Liu (刘玉玺)1,4, C. P. Sun (孙昌璞)3, and Franco Nori (野理)1,4,5
1Advanced Science Institute, The Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198, Japan
2Department of Physics, Hunan Normal University, Changsha 410081, China
3Institute of Theoretical Physics, The Chinese Academy of Sciences, Beijing, 100080, China
4CREST, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
5Center for Theoretical Physics, Physics Department, Center for the Study of Complex Systems, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA

Received 27 February 2008; published 2 September 2008

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.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.100501
DOI:
10.1103/PhysRevLett.101.100501
PACS:
03.67.Lx, 03.65.Nk, 85.25.−j
 
< Previous Article | Next Article >