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Quantum Chemistry

Influence of a dark-soliton on the reflection of a Bose-Einstein condensate by a square barrier

arXiv
Authors: Qiao-Ling Cheng, Wen-Kai Bai, Yao-Zhong Zhang, Bo Xiong, Tao Yang

Year

2018

Paper ID

22654

Status

Preprint

Abstract Read

~2 min

Abstract Words

100

Citations

N/A

Abstract

We study the quantum reflection of a two-dimensional disk-shaped Bose-Einstein condensate with a dark-soliton excitation by a square potential barrier. For the giving geometry, the dark-soliton initially located at the centre of the condensate cloud survive long enough for investigating the reflection process. We show the time evolution of the reflection probability with respect to various width of the barrier. The asymptotic value of the reflection probability is decreased by the existence of a dark-soliton, and is highly sensitive to the initial orientation of the dark-soliton which also affects the excitation properties during the process of condensate and barrier interaction.

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  • We study the quantum reflection of a two-dimensional disk-shaped Bose-Einstein condensate with a dark-soliton excitation by a square potential barrier.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1901.04294 [2] arXiv https://arxiv.org/abs/1901.04294 [3] Publisher https://arxiv.org/abs/1901.04294

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