论文标题

在旋转轨道耦合的Bose-Einstein冷凝物中,明亮孤子和其他局部状态的淬灭动力学

Quenching dynamics of the bright solitons and other localized states in spin-orbit coupled Bose-Einstein condensates

论文作者

Ravisankar, Rajamanickam, Sriraman, Thangarasu, Salasnich, Luca, Muruganandam, Paulsamy

论文摘要

我们研究了在准二维环境中由超速和稀释碱金属原子制成的二元bose-enstein冷凝物的动力学。数值求解了准确描述系统动力学的两个耦合的毛线杆核方程,我们证明了旋转传输可以通过适当淬灭自旋轨道(SO)和RABI耦合强度来控制。此外,我们预测了淬火引起的各种动力学特征:振荡,呼吸器样振荡模式,旋转混合聚集,可混杂的不可见的过渡,新兴的黑亮状态,深色的孤子和旋转链接动力学。我们还概述了本研究在$^{39} $ k冷凝物中操纵旋转状态的实验相关性。

We study the dynamics of binary Bose-Einstein condensates made of ultracold and dilute alkali-metal atoms in a quasi-one-dimensional setting. Numerically solving the two coupled Gross-Pitaevskii equations which accurately describe the system dynamics, we demonstrate that the spin transport can be controlled by suitably quenching spin-orbit (SO) and Rabi coupling strengths. Moreover, we predict a variety of dynamical features induced by quenching: broken oscillations, breathers-like oscillating patterns, spin-mixing-demixing, miscible-immiscible transition, emerging dark-bright states, dark solitons, and spin-trapping dynamics. We also outline the experimental relevance of the present study in manipulating the spin states in $^{39}$K condensates.

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