Matter-Wave Solitons in Two-Component Bose-Einstein Condensates with Tunable Interactions and Time Varying Potential

• 作者: 宣恒农 左苗
• 来源期刊: 理论物理通讯：英文版
• 学科: 物理学
• 关键词: 原子相互作用 爱因斯坦凝聚 时间依赖性 物质波 孤子解 玻色 可调 Feshbach共振
• 年，卷（期）: 2011,（12）
• 页码范围: 1035-1040
• 页数: 6页
• 分类号: O431|O4
• 语种: 英文

摘要

We present three families of exact matter-wave soliton solutions for an effective one-dimension two- component Bose-Einstein condensates （BECs） with tunable interactions, harmonic potential and gain or loss term. We investigate the dynamics of bright-bright solitons, bright-dark solitons and dark-dark solitons for the time-dependent expulsive harmonic trap potential, periodically modulated harmonic trap potential, and kinklike modulated harmonic trap potential. Through the Feshbach resonance, these dynamics can be realized in experiments by suitable control of time-dependent trap parameters, atomic interactions, and interaction with thermal cloud.