Experimental study on improving the robustness of atom interferometer by using stimulated Raman shortcut-to-adiabatic passage

Abstract

Abstract: We report the experimental results of using a new scheme of stimulated Raman shortcut-to-adiabatic passage (STIRSAP) to implement an atom interferometer and improve its robustness. The fringe contrast of the Ramsey atom interferometer using STIRSAP is analyzed. Comparing with the traditional Ramsey interferometer using stimulated Raman adiabatic passage, the adiabatic passage is speeded up in the STIRSAP, and the contrast of the atom interference fringe is improved. By tuning the intensity of the Raman pulse, the phase shift of the atom interference fringe caused by the ac Stark effect is measured. The experimental results show that the STIRSAP effectively suppresses ac Stark effect, and thus improves the robustness of the atom interferometer.

Key words: Atom optics, adiabatic transition, atom interferometer, phase shift

CLC Number:

O431

Lu Sibin 1,2,3, Chen Honghui 1,2,3, Lu Zexi 1,2,3, Yao Zhanwei 1,2, Li Runbing 1,2, Wang Jin 1,2, Zhan Mingsheng 1,2. Experimental study on improving the robustness of atom interferometer by using stimulated Raman shortcut-to-adiabatic passage[J]. Chinese Journal of Quantum Electronics, 2019, 36(4): 434-439.

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