旋转双组分偶极玻色-爱因斯坦凝聚体的基态

IF 3.8 2区物理与天体物理 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Journal of Computational Physics Pub Date : 2025-08-06 DOI:10.1016/j.jcp.2025.114275

Wenlei Li , Qinglin Tang , Jing Wang , Yong Zhang , Ruijie Zou

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引用次数: 0

摘要

本文主要研究旋转双组分偶极玻色-爱因斯坦凝聚体的基态。首先，我们用严格的证明研究了基态的存在性和唯一性。然后，我们将梯度流与拉格朗日乘子（GFLM）方法和最优核截断法（KTM）相结合，构建了一种频谱精确和高效的计算方案，用于偶极-偶极相互作用（DDI）的评估。最后，我们验证了谱的准确性，并给出了广泛的数值结果来研究不同模型参数对基态的影响，包括质量分布、短程相互作用强度、角速度和各向异性俘获势。

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On the ground states of rotating two-component dipolar Bose–Einstein condensates

In this paper, we focus on the ground states of rotating two-component dipolar Bose–Einstein condensates. To begin with, we investigate the existence and uniqueness of the ground states with rigorous proofs. Then, we construct a spectrally accurate and efficient numerical scheme by integrating the gradient flow with Lagrange multiplier (GFLM) method and the optimal Kernel Truncation method (KTM) for Dipole-Dipole Interaction (DDI) evaluation to compute the ground states. Finally, we confirm the spectral accuracy, and extensive numerical results are presented to study the effects of different model parameters on the ground states, including the mass distribution, short-range interaction strength, angular velocity and anisotropic trapping potential.

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来源期刊

Journal of Computational Physics 物理-计算机：跨学科应用

CiteScore

7.60

自引率

14.60%

发文量

763

审稿时长

5.8 months

期刊介绍： Journal of Computational Physics thoroughly treats the computational aspects of physical problems, presenting techniques for the numerical solution of mathematical equations arising in all areas of physics. The journal seeks to emphasize methods that cross disciplinary boundaries. The Journal of Computational Physics also publishes short notes of 4 pages or less (including figures, tables, and references but excluding title pages). Letters to the Editor commenting on articles already published in this Journal will also be considered. Neither notes nor letters should have an abstract.