受限驱动-耗散极化激元量子流体中 Onsager 涡旋聚类的动力学研究
Dynamics of Onsager vortex clustering in decaying turbulent polariton quantum fluids
AI总结：
本研究通过数值模拟揭示了脉冲激发后极化激元量子流体中 Onsager 涡旋聚类的弛豫动力学，对比保守与非保守系统阐明了聚类对特征长度和时间尺度的依赖，并数值表征了观测 Onsager 凝聚的最佳条件及其实验可达性。
摘要：
我们研究了脉冲激发后受限驱动-耗散极化激元量子流体的湍流特性。通过数值模拟，我们揭示了在初始注入涡旋云的弛豫动力学过程中出现的涡旋聚类过程。对保守动力学与非保守动力学的对比表明，聚类的发生强烈依赖于不同特征系统长度和时间尺度之间的相互作用，非保守情况下还因耗散引入了额外的时间尺度。对聚类观测量的量化使我们能够数值表征在衰减极化激元系统中观测 Onsager 凝聚的最佳条件，并证明其在脉冲激发下的实验可达性。这些发现对探索跨越经典和量子领域的开放系统中湍流动力学的发生具有重要意义。
英文摘要：
We investigate the turbulent properties of a confined driven-dissipative polariton quantum fluid after a pulsed excitation. Using numerical simulations, we provide insight into the vortex clustering processes that emerge during the relaxation dynamics of the initially injected vortex cloud. A confrontation between conservative and non-conservative dynamics reveals that the onset of clusterization strongly depends on the interplay between the different characteristic system lengths and time scales at stake, with an additional time scale due to dissipation in the non-conservative case. Quantification of the clustering observables allows us to numerically characterize the optimal conditions for observing Onsager condensation in decaying polariton systems, demonstrating its experimental reachability under pulse excitation. These findings hold significance for exploring the onset of turbulent dynamics in open systems, spanning both classical and quantum domains.
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