Quantum Routing of Single Photons with a Cyclic Three-Level System

Lan Zhou, Li-Ping Yang, Yong Li, C. P. Sun
2013 Physical Review Letters  
We propose an experimentally accessible single-photon routing scheme using a -type three-level atom embedded in quantum multi-channels composed of coupled-resonator waveguides. Via the on-demand classical field applied to the atom, the router can extract a single photon from the incident channel, and then redirect it into another. The efficient functions of perfect reflection of single photon signal in the incident channel is rooted in the coherent resonance and the existence of photonic bound states.
doi:10.1103/physrevlett.111.103604 pmid:25166667 fatcat:rmteafyfffhx3iyfbbwvkm3vwa