Simulation of quantum coherence dynamics in macroscopic domain using a three-waveguide directional coupler
JOURNAL OF MODERN OPTICS(2020)
摘要
We consider a three-waveguide (WG) directional coupler with an attempt to explore an optical analogue of thequantum coherence dynamics,which is found to be achievable in the present model at the macroscopic domain. In order to simulate the characteristics of such opto-quantum analogy, a field-coupled three-level atomic system has been undertaken in our study. Mutual correspondence between the field-induced coherence properties in the atomic system and the light transfer related optical properties in the evanescently coupled WGs has been discussed in the dissipative cases at different parameter conditions. The signature ofoptical impedanceis highlighted in this context and the impact of these terms in visualizing the coherence dynamics inherent to a nano-photonic structure is explicitly reported.
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关键词
Waveguide nanostructure,optical analogue of quantum coherence,optical impedance,Gaussian-evanescent coupling
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