Robust stability of quantum interference realized by coexisting detuned and resonant STIRAPs

• URL: http://arxiv.org/abs/2003.10058v1
• Date: Mon, 23 Mar 2020 02:39:46 GMT
• Title: Robust stability of quantum interference realized by coexisting detuned and resonant STIRAPs
• Authors: Yichun Gao and Jianqin Xu and Jing Qian
• Abstract summary: An unprecedented quantum interference was observed in the way of Stimulated Raman adiabatic passage (STIRAP) We study this effect for uncovering its robustness towards the external-field fluctuations of laser noise, imperfect resonance condition as well as the excited-state decaying.
• Score: 6.90762386861689
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Inspired by a recent experiment [Phys. Rev. Letts. \textbf{122}, 253201(2019)] that an unprecedented quantum interference was observed in the way of Stimulated Raman adiabatic passage (STIRAP) due to the coexisting resonant- and detuned-STIRAPs, we comprehensively study this effect for uncovering its robustness towards the external-field fluctuations of laser noise, imperfect resonance condition as well as the excited-state decaying. We verify that, an auxiliary dynamical phase accumulated in hold time caused by the quasi-dark state can sensitively manipulate the visibility and frequency of the interference fringe, representing a new hallmark to measure the hyperfine energy accurately. The robust stability of scheme comes from the intrinsic superiority embedded in STIRAP itself, which promises a remarkable preservation of the quantum interference quality in a practical implementation.

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