AI 中文总结
本文通过经典场模型模拟，研究染料填充微腔光子凝聚体一维阵列的一阶相干性，发现其受驱动耗散特性会出现KPZ标度，还探讨了激发态占据的修正及光谱滤波的恢复方法。
AI 中文摘要
已知染料填充微腔中的光子玻色-爱因斯坦凝聚体具有理想玻色气体在热平衡下的诸多性质，但有限的光子寿命使其成为受驱动耗散系统，损耗由泵浦激光的持续驱动平衡。本文基于经典场模型的模拟表明，其受驱动耗散特性导致一阶相干性呈现 Kardar-Parisi-Zhang（KPZ）标度，该现象在激子-极化激元相关凝聚体中已广为人知。值得注意的是，研究发现KPZ标度甚至出现在密度涨落较大的区域，文中还讨论了激发态占据对标度的修正，以及如何通过光谱滤波恢复普适标度行为。
英文摘要
Bose-Einstein condensates of photons in dye filled microcavities are known to feature many properties of the ideal bose gas at thermal equilibrium. Nevertheless, the finite photon life time renders them driven dissipative systems where losses are balanced by continuous driving by a pump laser. We show here with simulations based on a classical field model that their driven-dissipative nature causes their first order coherence to feature Kardar-Parisi-Zhang (KPZ) scaling, a phenomenon well known in the related condensates of exciton-polaritons. Remarkably, we find that the KPZ scaling even occurs in a regime with large density fluctuations. We discuss the modification of the scaling by the occupation of excited states and how to recover the universal scaling behavior by spectral filtering.
