细长自旋凝聚体的混沌自旋动力学
Chaotic spin dynamics of elongated spinor condensates
AI总结：
研究细长自旋-1凝聚体中由非均匀密度分布引起的非线性与量子效应相互作用导致的局域磁化动力学，揭示了不同动力学区域共存、空间激发态量子相变以及混沌行为，并绘制了普适相图。
摘要：
细长自旋-$1$凝聚体由于来自非均匀密度分布的非线性与量子效应之间的相互作用，呈现出高度非平凡的局域磁化动力学。这种相互作用在初始全局淬火后导致不同的动力学区域。特别地，我们表明系统可能表现出明显不同的动力学域共存，这些域由充当空间激发态量子相变的鲁棒界面分隔。此外，局域自旋动力学可能进入混沌区域，其特征是不规则演化和对初始条件的指数敏感性。我们绘制了区分规则和混沌区域的普适相图，该相图可在正在进行的实验中进行探测。
英文摘要：
Elongated spin-$1$ condensates present a highly non-trivial local magnetization dynamics, due to the interplay between nonlinear and quantum effects stemming from the inhomogeneous density profile. This interplay results in different dynamical regimes after an initial global quench. In particular, we show that the system may display the coexistence of markedly different dynamical domains separated by a robust interface that acts as a spatial excited-state quantum phase transition. Furthermore, the local spinor dynamics may enter a chaotic regime characterized by irregular evolution and exponential sensitivity to initial conditions. We map the universal phase diagram distinguishing regular and chaotic regimes, which may be probed in on-going experiments.
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