Instituto de Óptica (IO-CSIC), Consejo Superior de Investigaciones Científicas, 28006 Madrid, Spain.
Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87106, USA.
Phys Rev Lett. 2023 Mar 31;130(13):133605. doi: 10.1103/PhysRevLett.130.133605.
The fluctuations of the electromagnetic field are at the origin of the near-field radiative heat transfer between nanostructures, as well as the Casimir forces and torques that they exert on each other. Here, working within the formalism of fluctuational electrodynamics, we investigate the simultaneous transfer of energy and angular momentum in a pair of rotating nanostructures. We demonstrate that, due to the rotation of the nanostructures, the radiative heat transfer between them can be increased, decreased, or even reversed with respect to the transfer that occurs in the absence of rotation, which is solely determined by the difference in the temperature of the nanostructures. This work unravels the unintuitive phenomena arising from the simultaneous transfer of energy and angular momentum in pairs of rotating nanostructures.
电磁场的波动是导致纳米结构之间近场辐射热传递以及它们之间相互作用的卡西米尔力和力矩的根源。在这里，我们在涨落电动力学的形式体系内研究了一对旋转纳米结构中能量和角动量的同时传递。我们证明，由于纳米结构的旋转，它们之间的辐射热传递可以相对于在没有旋转时发生的传递而增加、减少甚至反转，而这种传递仅由纳米结构温度的差异决定。这项工作揭示了在一对旋转纳米结构中同时传递能量和角动量所产生的非直觉现象。
