Bulletin of the American Physical Society
53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 67, Number 7
Monday–Friday, May 30–June 3 2022; Orlando, Florida
Session F01: Poster Session I (4:30-6:30pm, EDT)
4:30 PM,
Tuesday, May 31, 2022
Room: Grand Ballroom C
Abstract: F01.00031 : Collective chemical reactions and domain wall dynamics in an atomic Bose-Einstein condensate
Presenter:
Shu Nagata
(University of Chicago)
Authors:
Shu Nagata
(University of Chicago)
Zhendong Zhang
(University of Chicago)
Kai-Xuan Yao
(University of Chicago)
Cheng Chin
(University of Chicago)
In our second work, we investigate dynamics of domain walls in a BEC under a density-dependent gauge field. The density-dependent gauge field is created by modulation of the lattice potential and interatomic interactions which results in the creation of domains with different momenta. We observe the formation of domain walls due to the inhomogeneity of the atomic cloud density. We also study the dynamics of the domain walls in response to a synthetic electric field. By treating the domain walls as elementary excitations, we find the acceleration of the domain wall is twice as that of bare atoms and moves in the opposite direction.
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