论文标题
将杂质的多体碰撞动力学注入了双孔捕获的玻色网凝结物
Many-body collisional dynamics of impurities injected into a double-well trapped Bose-Einstein condensate
论文作者
论文摘要
我们揭示了一个谐波杂质的多体动力学与骨质介质相撞，该介质在将最初移位的谐波陷阱淬灭后，被限制在双孔中。我们揭示了新兴的相关动力学至关重要的取决于杂质中的相互作用强度，从而使分类为不同的动态响应状态。对于有吸引力的杂质 - 中等耦合，杂质与骨浴结合，而对于中间景点，它会经历有效的隧道。在有吸引力或排斥耦合的情况下，杂质穿透了骨气浴并进行耗散性振荡运动。进一步增加了杂质 - 浴力的排斥力导致固定在骨介质的密度峰之间的杂质，这一现象与强大的杂质 - 中等纠缠有关。对于强烈的排斥，骨骼培养基完全反映了杂质。为了阐明伴随动力学的基本微观激发过程，我们采用了有效的潜在图像。我们将结果扩展到两个骨质杂质的情况，并证明存在质量相似的杂质动力学。
We unravel the many-body dynamics of a harmonically trapped impurity colliding with a bosonic medium confined in a double-well upon quenching the initially displaced harmonic trap to the center of the double-well. We reveal that the emerging correlation dynamics crucially depends on the impurity-medium interaction strength allowing for a classification into different dynamical response regimes. For strong attractive impurity-medium couplings the impurity is bound to the bosonic bath, while for intermediate attractions it undergoes an effective tunneling. In the case of weak attractive or repulsive couplings the impurity penetrates the bosonic bath and performs a dissipative oscillatory motion. Further increasing the impurity-bath repulsion results in the pinning of the impurity between the density peaks of the bosonic medium, a phenomenon that is associated with a strong impurity-medium entanglement. For strong repulsions the impurity is totally reflected by the bosonic medium. To unravel the underlying microscopic excitation processes accompanying the dynamics we employ an effective potential picture. We extend our results to the case of two bosonic impurities and demonstrate the existence of a qualitatively similar impurity dynamics.
