期刊
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
卷 61, 期 8, 页码 -出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-022-05174-y
关键词
Single-photon transport; Double EIT; Nonreciprocal scattering effect
The study focuses on single-photon transport properties in a hybrid waveguide quantum electrodynamics system, demonstrating the observation of double electromagnetically induced transparency (EIT) effect when the waveguide is coupled to the cavity and the atom at the same point. The controllable nonreciprocal scattering effect can be achieved by modulating the non-zero cavity-emitter separation and the phase associated with the cavity-emitter coupling strength when the waveguide is coupled to the cavity and the atom at different points.
We investigate the single-photon transport properties in a hybrid waveguide quantum electrodynamics system, in which a one-dimensional waveguide is simultaneously coupled to a cavity and a driven ?-type three-level atom. The cavity and the atom are also coupled to each other. We show that when the waveguide is coupled to the cavity and the atom at the same point, double electromagnetically induced transparency (EIT) can be observed from the system. The physical mechanism of the double EIT effect has been given by setting up the eigenstate structure for the whole system. When the waveguide is coupled to the cavity and the atom at different points, we demonstrate that the controllable nonreciprocal scattering effect can be achieved by modulating the non-zero cavity-emitter separation and the phase associated with the cavity-emitter coupling strength. These results have potential applications in realization of photonic coherent control.
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