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《科学》 第391卷 第6783期 · 2026年1月22日 · 中文解读

玻色-爱因斯坦凝聚体中爱因斯坦-德哈斯效应的观测

Observation of the Einstein–de Haas effect in a Bose–Einstein condensate · H. Matsui et al.
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本文报道了在旋量偶极玻色-爱因斯坦凝聚体中观测到爱因斯坦-德哈斯效应,其中磁偶极-偶极相互作用介导了原子自旋角动量向量子流体集体环流的相干转移。
原文开头
Hiroki Matsui1, Yuki Miyazawa1, Ryoto Goto2, Chihiro Nakano2, Yuki Kawaguchi3,4, Masahito Ueda5, Mikio Kozuma1,2* The Einstein–de Haas effect is a phenomenon in which angular momentum is transferred from microscopic spins to mechanical rotation of a macroscopic rigid body. We report an observation of the Einstein–de Haas effect in a spinor- dipolar Bose–Einstein condensate, in which the intrinsic magnetic dipole- dipole interaction mediates coherent transfer of angular momentum from atomic spins to collective circulation of a quantum fluid. The depolarized spinor components displayed ring- shaped density distributions that were confirmed as quantized vortices through matter- wave interferometry, revealing a coherent conversion between spin and orbital angular momentum. …
摘自《科学》(Science)第391卷 第6783期 · 2026年1月22日,H. Matsui et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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