Vortices in Nonequilibrium Photon Condensates
Vortices in Nonequilibrium Photon Condensates
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DOI：
10.1103/physrevlett.125.215301
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发表时间：
2020-11-19
影响因子：
8.6
通讯作者：
Wouters, Michiel
中科院分区：
文献类型：
--
作者：
Gladilin, Vladimir N.;Wouters, Michiel
本文对光子凝聚体阵列中的涡旋进行了理论研究。即使在相互作用可以忽略不计的情况下，就像目前的实验一样，泵送和损失也会导致有限的涡旋核心大小。虽然光子凝聚涡旋的一些特性，如自加速和运动涡旋产生涡旋对，类似于激光和远离平衡的相互作用的极化子凝聚，但在几个方面它们与先前研究的系统不同：涡旋核的大小是由泵浦和隧道之间的平衡决定的，核心在其运动方向上呈扁圆形，新的涡旋对可以在核心区域自发成核。
We present a theoretical study of vortices in arrays of photon condensates. Even when interactions are negligible, as is the case in current experiments, pumping and losses can lead to a finite vortex core size. While some properties of photon condensate vortices, such as their self-acceleration and the generation of vortex pairs by a moving vortex resemble those in lasers and interacting polariton condensates far from equilibrium, in several aspects they differ from previously studied systems: the vortex core size is determined by the balance between pumping and tunneling, the core appears oblate in the direction of its motion, and new vortex pairs can spontaneously nucleate in the core region.