Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate

1999/08/16 by Yoshio Torii, Y. Suzuki, Yoichi Suzuki +6 · 7 citations
Chemistry · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Spectroscopy and Laser Applications #Strong Light-Matter Interactions #cond-mat

paper · pdf · doi:10.1103/physreva.61.041602

10 pages, 3 figures, Quantum Electronics and Laser Science Conference 1999, Postdeadline papers QPD12-1

arxiv created 1999/08/16 · openalex publication_date 2000/02/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We construct a Mach-Zehnder interferometer using Bose-Einstein condensed rubidium atoms and optical Bragg diffraction. In contrast to interferometers based on normal diffraction, where only a small percentage of the atoms contribute to the signal, our Bragg diffraction interferometer uses all the condensate atoms. The condensate coherence properties and high phase-space density result in an interference pattern of nearly 100% contrast. The two arms of the interferometer may be completely separated in space, making it an ideal tool that can be used to detect vortices or other topological condensate phases.

Citations

• Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor

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• Vortex sorter for Bose-Einstein condensates
• Dynamics of a Bose-Einstein-condensate bright soliton in an expulsive potential
• Why momentum width matters for atom interferometry with Bragg pulses