Interference of Two-Dimensional Bose-Einstein Condensates in Micro-Gravity

Fuente: arXiv
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Auteurs principaux: Zhang, Tie-Fu, Zhu, Hao, Bai, Wen-Kai, Liu, Kai, Xing, Yi-Hui, Liu, Wu-Ming
Format: Preprint
Publié: 2024
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author Zhang, Tie-Fu
Zhu, Hao
Bai, Wen-Kai
Liu, Kai
Xing, Yi-Hui
Liu, Wu-Ming
author_facet Zhang, Tie-Fu
Zhu, Hao
Bai, Wen-Kai
Liu, Kai
Xing, Yi-Hui
Liu, Wu-Ming
contents We investigate the interference of two-dimensional Bose-Einstein condensates in micro-gravity, which influenced by the interaction strength, initial momentum, gravitational potential and phase difference. We demonstrate that the gravitational potential from the Earth can change the density distribution and phase distribution of the condensate's wave function. As time evolves, a portion of the gravitational potential energy of the microscopic particles can be converted into kinetic energy, which changes the motion of the microscopic particles, and leads to the varying of the density and phase distribution of the wave function. Nevertheless, the influences of the Earth's gravity on the wave function can be eliminated by the micro-gravity environment, which confirmed by many micro-gravity cold atom experiments. Our results present the influences of gravity and other parameters on interference of Bose-Einstein condensates, which help us to reveal the intrinsic natures of the related theoretical predictions and experimental phenomena. Furthermore, our work builds a bridge between the related physical phenomena and our physical intuition about the Bose-Einstein condensates in micro-gravity environment.
format Preprint
id arxiv_https___arxiv_org_abs_2401_00920
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Interference of Two-Dimensional Bose-Einstein Condensates in Micro-Gravity
Zhang, Tie-Fu
Zhu, Hao
Bai, Wen-Kai
Liu, Kai
Xing, Yi-Hui
Liu, Wu-Ming
Quantum Gases
Atomic Physics
We investigate the interference of two-dimensional Bose-Einstein condensates in micro-gravity, which influenced by the interaction strength, initial momentum, gravitational potential and phase difference. We demonstrate that the gravitational potential from the Earth can change the density distribution and phase distribution of the condensate's wave function. As time evolves, a portion of the gravitational potential energy of the microscopic particles can be converted into kinetic energy, which changes the motion of the microscopic particles, and leads to the varying of the density and phase distribution of the wave function. Nevertheless, the influences of the Earth's gravity on the wave function can be eliminated by the micro-gravity environment, which confirmed by many micro-gravity cold atom experiments. Our results present the influences of gravity and other parameters on interference of Bose-Einstein condensates, which help us to reveal the intrinsic natures of the related theoretical predictions and experimental phenomena. Furthermore, our work builds a bridge between the related physical phenomena and our physical intuition about the Bose-Einstein condensates in micro-gravity environment.
title Interference of Two-Dimensional Bose-Einstein Condensates in Micro-Gravity
topic Quantum Gases
Atomic Physics
url https://arxiv.org/abs/2401.00920