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在二进制斯-爱因斯坦冷凝液中混合性-不混合性过渡的非线性管理
B B Baizakov1,2, B A Malomed3,4, M Salerno5
1Physical-Technical Institute, Uzbek Academy of Sciences, Tashkent 100084, Uzbekistan.
Physical review. E
|September 16, 2025
概括
非线性管理 (NM) 控制了波斯-爱因斯坦凝结物的混合性-不混合性过渡. NM通过定期穿过过渡点来限制混合性,即使使用拉比合 (RC).
科学领域:
- 原子,分子和光学物理学
- 量子气体是一种量子气体.
- 斯 - 爱因斯坦凝结物
背景情况:
- 斯-爱因斯坦凝聚物 (BECs) 在可混合和不可混合状态之间呈现相变.
- 线性混合 (拉比合,RC) 和捕获潜力影响混合性-不混合性 (MIM) 过渡.
- 了解域墙 (DW) 结构对于控制 BEC 行为至关重要.
研究的目的:
- 研究非线性管理 (NM) 在双组件BEC中对MIM过渡的应用.
- 分析Rabi合 (RC) 和没有Rabi合 (RC) 的NM对BEC混合性的影响.
- 识别和描述域墙结构及其稳定性.
主要方法:
- 变量近似和数值解决方案来识别静止的域墙 (DW) 结构.
- 由于陷潜力,MIM过渡上调的分析估计.
- 在均混合状态和DW状态下分析线性激发光谱.
主要成果:
- 确定了各种静止的DW结构,近似的分析解决方案与数值对应物很好地一致.
- 拉比合 (RC) 增加了MIM过渡的临界排斥强度.
- 非线性管理 (NM) 限制了混合性,特别是在定期穿越MIM过渡点时.
结论:
- 非线性管理 (NM) 提供了一种方法来控制双组分斯-爱因斯坦凝结物的可混合性.
- 拉比合 (RC) 和捕获潜力的存在对MIM过渡动态产生了重大影响.
- 根据系统参数,NM可以稳定或破坏域墙结构的稳定.
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