通过嵌入自旋实现纳米粒子旋转的无转矩操纵
Torque-free manipulation of nanoparticle rotations via embedded spins
摘要：
自旋角动量和机械转动都对刚体的总角动量有贡献，导致通过爱因斯坦-德哈斯和巴内特效应的自旋-转动耦合。在这里，我们表明，对称的纳米转子的革命可以强烈地影响少量的内在自旋。由此产生的动力学是可观察到的自由旋转的纳米金刚石与嵌入的氮空位中心，并坚持为现实形状的近对称粒子，打开大门的无扭矩计划，以控制其在量子水平上的旋转。
英文摘要：
Spin angular momentum and mechanical rotation both contribute to the total angular momentum of rigid bodies, leading to spin-rotational coupling via the Einstein-de Haas and Barnett effects. Here we show that the revolutions of symmetric nanorotors can be strongly affected by a small number of intrinsic spins. The resulting dynamics are observable with freely rotating nanodiamonds with embedded nitrogen-vacancy centers and persist for realistically-shaped near-symmetric particles, opening the door to torque-free schemes to control their rotations at the quantum level.
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