Physics – Condensed Matter – Superconductivity
Scientific paper
2008-02-28
Phys. Rev. Lett 101, 100501 (2008)
Physics
Condensed Matter
Superconductivity
4 pages, 5 figures
Scientific paper
10.1103/PhysRevLett.101.100501
We analyze coherent transport of photons, which propagate in a one-dimensional coupled-resonator waveguide (CRW) and are scattered by a controllable two-level system located inside the CRW. 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 photons. 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
Gong Z. R.
Liu Yu-xi
Nori Franco
Sun Chang-Pu
Zhou Lan
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