Observation of Dicke cooperativity in magnetic interactions

被引：111

作者：

Li, Xinwei ^{[1
]}

Bamba, Motoaki ^{[2
,3
]}

Yuan, Ning ^{[4
,5
]}

Zhang, Qi ^{[6
]}

Zhao, Yage ^{[7
]}

Xiang, Maolin ^{[4
,5
]}

Xu, Kai ^{[4
,5
]}

Jin, Zuanming ^{[4
,5
]}

Ren, Wei ^{[4
,5
]}

Ma, Guohong ^{[4
,5
]}

Cao, Shixun ^{[4
,5
]}

Turchinovich, Dmitry ^{[8
,9
]}

Kono, Junichiro ^{[1
,10
,11
]}

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[2] Osaka Univ, Dept Mat Engn Sci, Osaka 5608531, Japan

[3] Japan Sci & Technol Agcy, PRESTO, Saitama 3320012, Japan

[4] Shanghai Univ, Dept Phys, Int Ctr Quantum & Mol Struct, Shanghai 200444, Peoples R China

[5] Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China

[6] Argonne Natl Labs, Argonne, IL 60439 USA

[7] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[8] Univ Duisburg Essen, Fak Phys, Lotharstr 1, D-47057 Duisburg, Germany

[9] Max Planck Inst Polymer Res, Ackermannweg 10, D-55128 Mainz, Germany

[10] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA

[11] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

来源：

SCIENCE | 2018年 / 361卷 / 6404期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

SPIN REORIENTATION; RADIATION-FIELD; TRANSITIONS;

D O I：

10.1126/science.aat5162

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The interaction of N two-level atoms with a single-mode light field is an extensively studied many-body problem in quantum optics, first analyzed by Dicke in the context of superradiance. A characteristic of such systems is the cooperative enhancement of the coupling strength by a factor of root N. In this study, we extended this cooperatively enhanced coupling to a solid-state system, demonstrating that it also occurs in a magnetic solid in the form of matter-matter interaction. Specifically, the exchange interaction of N paramagnetic erbium(III) (Er3+) spins with an iron(III) (Fe3+) magnon field in erbium orthoferrite (ErFeO3) exhibits a vacuum Rabi splitting whose magnitude is proportional to root N. Our results provide a route for understanding, controlling, and predicting novel phases of condensed matter using concepts and tools available in quantum optics.

引用

页码：794 / 796

页数：3

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