Characterization of an atom interferometer in the quasi-Bragg regime

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 Schrödinger 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.

References in corpus (12)

• Measurement of the fine-structure constant as a test of the Standard Model
• Precision Measurement of the Newtonian Gravitational Constant Using Cold Atoms
• Interferometry with Bose-Einstein Condensates in Microgravity
• Testing General Relativity with Atom Interferometry
• Atom Interferometry with up to 24-Photon-Momentum-Transfer Beam Splitters
• Precision atomic gravimeter based on Bragg diffraction
• Large Momentum Transfer Clock Atom Interferometry on the 689 nm Intercombination Line of Strontium
• Atom-wave diffraction between the Raman-Nath and the Bragg regime: Effective Rabi frequency, losses, and phase shifts
• A Bose-Einstein condensate interferometer with macroscopic arm separation
• Mid-band gravitational wave detection with precision atomic sensors
• Testing Atom and Neutron Neutrality with Atom Interferometry
• Controlling the Multiport Nature of Bragg Diffraction in Atom Interferometry

Cited by in corpus (10)

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• Enhancing the sensitivity of atom-interferometric inertial sensors using robust control
• Optimal Floquet Engineering for Large Scale Atom Interferometers
• Large-momentum-transfer atom interferometers with $\mu$rad-accuracy using Bragg diffraction
• Atom interferometry with coherent enhancement of Bragg pulse sequences
• Bragg-diffraction-induced imperfections of the signal in retroreflective atom interferometers
• Dichroic mirror pulses for optimized higher-order atomic Bragg diffraction
• Spatial and Pulse Efficiency Constraints in Atom Interferometric Gravitational Wave Detectors
• Diffraction phase-free Bragg atom interferometry
• Fast momentum-selective transport of Bose-Einstein condensates via controlled non-adiabatic dynamics in optical lattices