论文标题
将广义流体动力学扩展到维度跨界方案
Extension of the Generalized Hydrodynamics to the Dimensional Crossover Regime
论文作者
论文摘要
为了解决冷气实验中的可集成性破坏，我们扩展了1D Lieb-Liniger模型的可整合流体动力学，其中有两个代表第一和第二个横向激发态中原子种群的组件，从而启用了准1D冷凝物的描述。不同组件之间的碰撞是通过在流体动力方程中包含玻尔兹曼型碰撞积分来解释的。与标准的广义流体动力学相反，我们的扩展模型以与量子牛顿摇篮设置的实验观测相一致的速率捕获了冷凝物的热化。
In an effort to address integrability breaking in cold gas experiments, we extend the integrable hydrodynamics of the 1d Lieb-Liniger model with two additional components representing the population of atoms in the first and second transverse excited states, thus enabling a description of quasi-1d condensates. Collisions between different components are accounted for through the inclusion of a Boltzmann-type collision integral in the hydrodynamic equation. Contrary to standard generalized hydrodynamics, our extended model captures thermalization of the condensate at a rate consistent with experimental observations from a quantum Newton's cradle setup.
