Single-photon scattering controlled by an imperfect cavity
Single-photon scattering controlled by an imperfect cavity
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由不完美腔控制的单光子散射
DOI：
10.1088/1674-1056/ab90ee
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发表时间：
2020-06
期刊：
影响因子：
--
通讯作者：
Qing-Hu Chen
中科院分区：
文献类型：
--
作者：
Liwei Duan;Qing-Hu Chen
We study the single-photon transport in the coupled-resonator waveguide (CRW) controlled by an imperfect cavity. A Lorentzian spectrum is introduced to describe the dissipation. We find that the probability current conservation can be broken, although the imperfect cavity is a Hermitian system. The coupling strength between the imperfect cavity and the CRW has significant influences near the resonant frequency. With the increase of the coupling strength, the transmission coefficient becomes smaller. The spectral width plays a dominant role under the off-resonant condition, where the transmission coefficient is greatly suppressed with the increase of the spectral width. We also observe an abrupt jump of the transmission and reflection coefficients when the hopping amplitude is large enough. All the distinctive behaviors are closely related to the complex effective potential induced by the imperfect cavity.
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影响因子：
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作者：
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期刊：
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影响因子：
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