Transferring and Bounding Single Photon in Waveguide Controlled by Quantum Node Based on Atomic Ensemble

摘要

We study the scattering process of photons confined in a one-dimensional optical waveguide by a lasercontrolled atomic ensemble.The investigation leads to an alternative setup of quantum node controlling the coherenttransfer of single photon in such one dimensional continuum.To exactly solve the effective scattering equations by usingthe 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 its vanishing at resonance reflects the good controllability of ourscheme.We also show that there exist two bound states to describe the localize photons around the cavity.