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寻找量子光学、
热力学与凝聚态物理学之间的桥梁
1973年,物理学理论在迪克(Dicke)模型中预测了
超辐射相变(SRPT)
SRPT建立了热力学、量子光学与凝聚态物理学之间的桥梁,
并能引起新的、具有技术相关性的现象
然而,还没有发现基于光的SRPT的实验证据
我们能在物质与物质相互
作用中找到SRPT吗?
铁酸铒(ErFeO3)
中发现的磁振子SRPT 光线
铁中的自旋波
(磁振子)
原子中的电磁跃迁
铒原子中的电
子顺磁共振
实验研究发现了
迪克协同性
(SRPT的初步证据)
0.2
0.4
0.6
理论研究证实了SRPT
的磁振子版本
与以下应用相关的深刻见解:
即将到来的量子技术,
如量子计算和量子传感
热能直接转化为
相干光
2018 2020
物质(电荷、自旋等)
与光的高强度相互作用
非相干(随机)电磁极化 和 非相干电
磁波(热辐射)是通过物质中粒子的热
运动获得的
静态相干电磁极化和 s静态相干电磁
场在热平衡下自发出现
在高温下
在低温下
Magnonic Superradiant Phase Transition
Bamba et al. (2022) | Communications Physics | DOI: 10.1038/s42005-021-00785-z
Motoaki Bamba
bamba.motoaki.y13@kyoto-u.jp

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