Single-photon quantum router in the microwave regime utilizing double superconducting resonators with tunable coupling
Y. T. Zhu, W. Z. Jia
DOI 10.1103/PhysRevA.99.063815 · Physical Review A
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Abstract
We provide a proposal to achieve single-photon router in the microwave domain based on a waveguide quantum electrodynamics structure, which consists of a double-resonator side coupled to a superconducting transmission line. A superconducting quantum interference device is used to realize tunable and switchable coupling between the resonators; thereby the transport of a single photon in the transmission line can be effectively controlled. Our calculations show that the device has high on-off ratio and is experimentally feasible in currently available superconducting quantum circuits.
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