Related papers: Characterization of an atom interferometer in the quasi-Bragg regime

Characterization of an atom interferometer in the quasi-Bragg regime

URL: http://arxiv.org/abs/2112.03086v3
Date: Thu, 3 Mar 2022 08:09:03 GMT
Title: Characterization of an atom interferometer in the quasi-Bragg regime
Authors: Ashley B\'eguin, Tangui Rodzinka, Jacques Vigu\'e, Baptiste Allard, Alexandre Gauguet
Abstract summary: We focus on an intermediate regime between the Raman-Nath and the Bragg regimes, the so-called quasi-Bragg regime. The experimental results are in a good agreement with a full numerical integration of the Schr"odinger equation.
Score: 58.720142291102135
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We provide a comprehensive study of ultra-cold atom diffraction by an optical lattice. We focus on an intermediate regime between the Raman-Nath and the Bragg regimes, the so-called quasi-Bragg regime. The experimental results are in a good agreement with a full numerical integration of the Schr\"odinger equation. We investigate the long pulse regime limited by a strong velocity selection and the short pulse regime limited by non-adiabatic losses. For each of these regimes, we estimate the multi-port features of the Bragg interferometers. Finally, we discuss the best compromise between these two regimes, considering the diffraction phase shift and the existence of parasitic interferometers.

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