利用两点关联探测间歇极化激元涡旋动力学
Probing intermittent polariton vortex dynamics with two-point correlations
浏览论文内容
中文总结 AI 辅助
本研究利用时间分辨率80ps的超导单光子探测器，结合二阶、一阶关联函数，探测到受限激子-极化激元凝聚体在Andronov-Hopf分岔附近的间歇动力学，揭示了其自排斥与激子库介导吸引的补偿机制。
中文摘要 AI 辅助
时间分辨率达80皮秒的超导单光子探测器被用于研究受限激子-极化激元玻色-爱因斯坦凝聚体的时空动力学。研究发现，二阶和一阶关联函数均呈现出由阱中极化激元凝聚体动力学主导的显著时间振荡。我们在Andronov-Hopf分岔附近识别出定态与极限环态之间随机跃迁的间歇 regime，表现为关联函数的不对称畸变。这种确定性与随机性凝聚体动力学的丰富相互作用，在理论上被解释为相互补偿的自排斥和激子库介导吸引的体现。
英文摘要
Superconducting single-photon detectors with time resolution of 80 ps have been used to study the spatiotemporal dynamics of a trapped bosonic condensate of exciton-polaritons. Both second- and first-order correlation functions are found to exhibit pronounced oscillations in time governed by the dynamics of the polariton condensate in the trap. We have identified the intermittent regime of stochastic transitions between stationary and limit-cycle regimes near the Andronov-Hopf bifurcation manifested in asymmetric distortions of the correlation function. This rich interplay of deterministic and stochastic condensate dynamics is explained theoretically as a manifestation of mutually compensating self-repulsion and reservoir-mediated attraction.
