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arXiv 2006.11095cond-mat.quant-gas
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非平衡光子凝聚中的涡旋

Vortices in nonequilibrium photon condensates

V. N. Gladilin, M. Wouters

摘要:

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,如在目前的实验中,泵送和损失可以导致一个有限的涡核大小。虽然光子凝聚体涡旋的一些性质,例如它们的自加速和运动涡旋产生的涡旋对,类似于远离平衡的相互作用极化激元凝聚体中的那些性质,但在几个方面它们与以前研究的系统不同:涡核尺寸由泵送和隧穿之间的平衡确定,核心在其运动方向上呈现扁球形,并且新的涡旋对可以在核心区域中自发地成核。

英文摘要:

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 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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