Related papers: Scattering halos in strongly interacting Feshbach molecular Bose-Einstein condensates

Scattering halos in strongly interacting Feshbach molecular Bose-Einstein condensates

URL: http://arxiv.org/abs/2412.17319v1
Date: Mon, 23 Dec 2024 06:22:14 GMT
Title: Scattering halos in strongly interacting Feshbach molecular Bose-Einstein condensates
Authors: Yuying Chen, Zhengxi Zhang, Chi-Kin Lai, Yun Liang, Hongmian Shui, Haixiang Fu, Fansu Wei, Xiaoji Zhou,
Abstract summary: We investigate the scattering halos resulting from collisions between discrete momentum components in the time-of-flight expansion of interaction-tunable $6rm Li$ molecular Bose-Einstein condensates.<n>A key highlight of this study is the observation of the influence of interactions on the collisional scattering process.
Score: 3.8058886814647237
License: http://creativecommons.org/licenses/by/4.0/
Abstract: We investigate the scattering halos resulting from collisions between discrete momentum components in the time-of-flight expansion of interaction-tunable $^6\rm Li_2$ molecular Bose-Einstein condensates. A key highlight of this study is the observation of the influence of interactions on the collisional scattering process. We measure the production of scattering halos at different interaction levels by varying the number of particles and the scattering length, and quantitatively assess the applicability of perturbation theory. To delve into a general theory of scattering halos, we introduce a scattering factor and obtain a universal relation between it and the halo ratio. Furthermore, we simulate the formation of scattering halos under non-perturbative conditions and analyze the discrepancies between simulation results and experiments through a return pulse experiment. This study enhances our understanding of the physical mechanisms underlying scattering processes in many-body systems and provides new perspectives for further theoretical research.

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