标题： 光凝聚体中相干和耗散动力学的相互作用 显示英文标题

标题： Interplay of coherent and dissipative dynamics in condensates of light

摘要： 基于Lindblad主方程方法，我们获得了一个详细的微观模型，描述了染料填充腔中的光子，该模型具有光的凝聚特性。为此，我们将Kirton和Keeling最近提出的非平衡方法进行推广，使得由于相干和耗散动力学的相互作用，可以获取光凝聚体中染料介导的光子-光子相互作用。我们通过分析光子和物质自由度的运动方程来描述系统的稳态特性。特别是，我们讨论了稳态的两个极限情况：光子玻色-爱因斯坦凝聚态和激光-like。在前一种情况下，我们依靠真实的实验数据确定相应的无量纲光子-光子相互作用强度，并发现与之前的理论估计有很好的一致性。此外，我们研究了无量纲相互作用强度如何依赖于各自的系统参数。 显示英文摘要

摘要： Based on the Lindblad master equation approach we obtain a detailed microscopic model of photons in a dye-filled cavity, which features condensation of light. To this end we generalise a recent non-equilibrium approach of Kirton and Keeling such that the dye-mediated contribution to the photon-photon interaction in the light condensate is accessible due to an interplay of coherent and dissipative dynamics. We describe the steady-state properties of the system by analysing the resulting equations of motion of both photonic and matter degrees of freedom. In particular, we discuss the existence of two limiting cases for steady states: photon Bose-Einstein condensate and laser-like. In the former case, we determine the corresponding dimensionless photon-photon interaction strength by relying on realistic experimental data and find a good agreement with previous theoretical estimates. Furthermore, we investigate how the dimensionless interaction strength depends on the respective system parameters.