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极子激光器的第二阶段时间连贯性基于一个微空洞中的原子薄晶体

Hangyong Shan¹, Jens-Christian Drawer¹, Meng Sun²

¹Institute of Physics, Carl von Ossietzky University, 26129 Oldenburg, Germany.

Physical review letters

|December 1, 2023

概括

微空洞中的激发极子在低激发时显示光子聚合,表明热辐射. 在值以上,它们形成一个连贯的状态,向统一光子相关性过渡.

科学领域:

固态物理固态物理
量子光学就是一个量子光学.
多体物理学的多体物理学.

背景情况:

微空洞中的刺激极子对于研究失衡物理至关重要.
他们处于量子技术的最前沿.
像MoSe2这样的原子薄过渡金属二甲基化物是这些系统的新兴材料.

研究的目的:

调查激发极子激光激光的光子统计.
分析宏观极立子相位过渡的情况.
了解分散在极子子凝聚中的作用.

主要方法:

使用二次时间相关函数研究光子统计.
在一个光学微腔中用MoSe2晶体检查了极子激光.
多种激发功率和温度,以探测相位过渡.
使用了一种微观的数值模型,包括声子散射.

主要成果:

观察到光子聚合在激光值以下,表明热分布.
在值以上,表现出向单一二次相关性的过渡.
在极子子凝聚物中形成连贯状态的证据.
数字模型的结果与实验观测结果一致.

结论:

刺激极立子经历从热状态到连贯状态的相变.
声子散射在极子子的量子行为中起着重要作用.
这项工作提供了对基本量子现象和潜在量子技术的洞察.

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