论文标题
极性冷凝物中杂质和非线性激发之间的相互作用
Interaction between an impurity and nonlinear excitations in a polariton condensate
论文作者
论文摘要
探索沉浸在现场激发中的移动杂质的动态是具有挑战性的，因为它需要说明杂质与周围激发之间的纠缠。为此，必须将杂质的有效质量视为有限的，而不是无限。在这里，我们从理论上研究了有限质量的杂质与代表北极bose-内施坦冷凝物（BEC）中非线性激发的耗散性刺激之间的相互作用。使用Lagrange变分方法和开放性的GROSS-PITAEVSKII方程，我们分析得出了Polariton BEC中杂质与耗散型孤子之间的相互作用相图。根据杂质质量的不同，我们发现与杂质碰撞的耗散孤子可以通过，被困或反射。这项工作开辟了一个新的观点，可以理解浸入现场激发中的杂质动态，以及与Polariton Solitons进行信息处理中的潜在应用。
Exploring the dynamics of a mobile impurity immersed in the field excitations is challenging, as it requires to account for the entanglement between the impurity and the surrounding excitations. To this end, the impurity's effective mass has to be considered as finite, rather than infinite. Here, we theoretically investigate the interaction between a finite-mass impurity and a dissipative soliton representing nonlinear excitations in the polariton Bose-Einstein condensate (BEC). Using the Lagrange variational method and the open-dissipative Gross-Pitaevskii equation, we analytically derive the interaction phase diagram between the impurity and a dissipative bright soliton in the polariton BEC. Depending on the impurity mass, we find the dissipative soliton colliding with the impurity can transmit through, get trapped, or be reflected. This work opens a new perspective in understanding the impurity dynamics immersed in the field excitations, as well as potential applications in information processing with polariton solitons.
