论文标题
管理液光的流动
Managing the Flow of Liquid Light
论文作者
论文摘要
强耦合的轻型系统可以在长距离内携带信息，并实现低阈值极化激光，凝结和超流量。这些系统本质上是高度非平衡的，因此，即使在稳态下，恒定的非零通量也会表现出来，并且通过非线性，分散，泵送，散发，耗散和系统各种组成之间的相互作用之间的复杂相互作用来设定。基于激光或偏光顿冷凝物的平均田间控制方程，我们通过操纵系统的空间泵送和耗散来开发一种工程和控制速度曲线的方法。我们介绍了分析性的精确抽水和耗散曲线，从而导致大量的空间周期性密度和速度曲线。除此之外，可以通过在与速度相关的外部电位中找到保守的非线性Schrodinger方程的固定状态来设计任何与物理相关的速度曲线。我们的方法为超快速信息处理，集成电路和模拟模拟器的激光或偏振顿流的可控实施开辟了道路。
Strongly coupled light-matter systems can carry information over long distances and realize low threshold polariton lasing, condensation and superfluidity. These systems are highly non-equilibrium in nature, so constant nonzero fluxes manifest themselves even at the steady-state and are set by a complicated interplay between nonlinearity, dispersion, pumping, dissipation and interactions between the various constituents of the system. Based on the mean-field governing equations of lasers or polariton condensates, we develop a method for engineering and controlling the velocity profiles by manipulating the system's spatial pumping and dissipation. We present analytically exact pumping and dissipation profiles that lead to a large variety of spatially periodic density and velocity profiles. Besides these, any physically relevant velocity profiles can be engineered by finding the stationary state of the conservative nonlinear Schrodinger equation in an external potential related to the velocity. Our approach opens the way to the controllable implementation of laser or polariton flows for ultra-fast information processing, integrated circuits, and analogue simulators.
