Files
Document type
ArticleVersion
Published versionPublication date
All rights reserved
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/128273
Matter-wave recombiners for trapped Bose-Einstein condensates
Journal Title
Director/Tutor
Journal ISSN
Volume Title
Related resource
Abstract
Interferometry with trapped atomic Bose-Einstein condensates (BECs) requires the development of techniques to recombine the two paths of the interferometer and map the accumulated phase difference to a measurable atom number difference. We have implemented and compared two recombining procedures in a double-well-based BEC interferometer. The first procedure utilizes the bosonic Josephson effect and controlled tunneling of atoms through the potential barrier, similar to laser light in an optical fiber coupler. The second one relies on the interference of the reflected and transmitted parts of the BEC wave function when impinging on the potential barrier, analogous to light impinging on a half-silvered mirror. Both schemes were implemented successfully, yielding an interferometric contrast of similar to 20% and 42% respectively. Building efficient matter-wave recombiners represents an important step towards the coherent manipulation of external quantum superposition states of BECs.
Subject (English)
Citation
Citation
BERRADA, T., et al. Matter-wave recombiners for trapped Bose-Einstein condensates. Physical Review A. 2016. Vol. 93, num. 6, pags. 063620-1-063620-10. ISSN 2469-9926. [consulted: 16 of June of 2026]. Available at: https://hdl.handle.net/2445/128273