Transferring and Bounding Single Photon in Waveguide Controlled by Quantum Node Based on Atomic Ensemble |
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Authors: | LU Jing DONG Hui KUANG Le-Man |
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Institution: | 1.Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, and Department of Physics, Hunan Normal University, Changsha 410081, China
;2.Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China |
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Abstract: | We study the scattering process of photons confined in a one-dimensional optical waveguide by a laser controlled atomic ensemble. The investigation leads to an alternative setup of quantum node controlling the coherent transfer of single photon in such one dimensional continuum. To exactly solve the effective scattering equations by using the discrete coordinate approach, we simulate the linear waveguide as a coupled resonator array at the high energy limit. We generally calculate the transmission coefficients and itsvanishing at resonace reflects the good controllability of our scheme. We also show that there exist two bound states to describe the localize photons around the cavity. |
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Keywords: | one-dimensional waveguide single photon |
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