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Dynamics of bubble-shaped Bose-Einstein condensates on two-dimensional cross-section in micro-gravity environment |
| Tie-Fu Zhang(张铁夫)1,2, Cheng-Xi Li(李成蹊)1,2, and Wu-Ming Liu(刘伍明)1,2,3,† |
1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
3 Songshan Lake Materials Laboratory, Dongguan 523808, China |
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Abstract We investigated the dynamic evolution and interference phenomena of bubble-shaped Bose-Einstein condensates achievable in a micro-gravity environment. Using numerical solutions of the Gross-Pitaevskii equation describing the dynamic evolution of the bubble-shaped Bose-Einstein condensates, we plotted the evolution of the wave function density distribution on its two-dimensional (2D) cross-section and analysed the resulting patterns. We found that changes in the strength of atomic interactions and initial momentum can affect the dynamic evolution of the bubble-shaped Bose-Einstein condensates and their interference fringes. Notably, we have observed that when the initial momentum is sufficiently high, the thickness of the bubble-shaped Bose-Einstein condensate undergoes a counterintuitive thinning, which is a counterintuitive result that requires further investigation. Our findings are poised to advance our comprehension of the physical essence of bubble-shaped Bose-Einstein condensates and to facilitate the development of relevant experiments in micro-gravity environments.
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Received: 25 March 2023
Revised: 19 May 2023
Accepted manuscript online: 26 May 2023
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PACS:
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05.30.Jp
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(Boson systems)
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67.85.-d
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(Ultracold gases, trapped gases)
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03.75.Kk
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(Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)
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| Fund: Project supported by the National Key Research and Development Program of China (Grant Nos. 2021YFA1400900, 2021YFA0718300, and 2021YFA1402100), the National Natural Science Foundation of China (Grant Nos. 61835013, 12174461, 12234012, and 12334012), and the Space Application System of China Manned Space Program. |
Corresponding Authors:
Wu-Ming Liu
E-mail: wliu@iphy.ac.cn
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Cite this article:
Tie-Fu Zhang(张铁夫), Cheng-Xi Li(李成蹊), and Wu-Ming Liu(刘伍明) Dynamics of bubble-shaped Bose-Einstein condensates on two-dimensional cross-section in micro-gravity environment 2023 Chin. Phys. B 32 090501
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