标题： 观察正常液体$^3$氦在气凝胶中的横向声波提案 显示英文标题

标题： Proposal to Observe Transverse Sound in Normal Liquid $^3$He in Aerogel

摘要： 在费米液体金属态中，通过逆法拉第效应（IFE），施加圆偏振电磁波会引发静态的局部磁矩。该磁矩的方向与光的传播方向一致，其大小取决于光的频率、温度以及金属特有的各种材料参数。我提出在$^3$H 的费米液体态中存在类似的效应。当液态$^3$H 被圆偏振横向声波驱动时，会引发静态的循环电流。对于填充在气凝胶中的液态$^3$H，耦合系统支持一种低衰减的横向声模式。我估计了该系统的感应循环电流的大小，并发现这些电流在低衰减区域的实验测量范围内。循环轴的方向与声波的传播方向一致。我将这种逆法拉第效应的类比作为实验演示$^3$H-气凝胶中横向声传播的一种方案。 显示英文摘要

摘要： In the Fermi liquid metallic state, a static local magnetic moment is induced on the application of a circularly polarized electromagnetic wave, via the inverse Fara-day effect (IFE). The direction of this moment is along the direction of propagation of light, and the magnitude of the moment depends on the frequency of light, the temperature and various material parameters characteristic of the metal. I propose an analogous effect in the Fermi liquid state of $^3$H. A static circulating current is induced when liquid $^3$H is driven by a circularly polarized transverse acoustic wave. For liquid $^3$H filled into aerogel, the coupled system supports a low-attenuation transverse sound mode. I estimate the magnitude of induced circulating currents for this system and find that these are within the range of experimental measurement in the low-attenuation regime. The axis of circulation is along the direction of propagation of the acoustic wave. I propose this analogue of the inverse Faraday effect as a scheme to experimentally demonstrate the propagation of transverse sound in $^3$H-aerogel.