亮孤立物质波的碰撞
Collisions of bright solitary matter waves
摘要：
由原子玻色-爱因斯坦凝聚体形成的三维亮孤立物质波的碰撞表现出丰富的行为。碰撞的范围从弹性到完全破坏性的，因为在相互作用期间开始崩溃。通过详细的定量分析，我们映射出的相对相位，碰撞速度和相互作用强度的作用。特别是，我们确定的崩溃时间在发病的不稳定碰撞的重要性，并显示如何相对相位控制波之间的人口转移。我们的分析使我们能够解释最近的实验观测明亮的孤立物质波。
英文摘要：
The collisions of three-dimensional bright solitary matter waves formed from atomic Bose-Einstein condensates are shown to exhibit rich behaviour. Collisions range from being elastic to completely destructive due to the onset of collapse during the interaction. Through a detailed quantitative analysis we map out the role of relative phase, impact speed and interaction strength. In particular, we identify the importance of the collapse time in the onset of unstable collisions and show how the relative phase controls a population transfer between the waves. Our analysis enables us to interpret recent experimental observations of bright solitary matter waves.
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