论文标题
手性培养基中的韦尔半法之间的casimir力
Casimir force between Weyl semimetals in a chiral medium
论文作者
论文摘要
我们研究了由两个含有手性介质的间隙隔开的系统组成的系统中的Casimir效应。我们计算材料对手性光子的光学响应，以计算Casimir力。我们发现，如果两个WSM之间的介质是法拉第材料，则可以获得排斥的casimir力，对于现实的实验参数，它的幅度可以在几微米的短途距离上大大增强，并且在系统中，您正在考虑的系统中可以修改各种参数。其中一些是所用材料的固有的（WSM的霍尔电导率的绝对值，Faraday材料的Verdet常数），而其中一些也可以在外部进行操纵，即使对于固定样品，例如外部磁场和平板的方向，这些板的方向决定了其电导率的迹象。这些参数的合适组合可用于从吸引力转变为排斥，并放置诱捕距离，其中无力在板上没有作用在它们之间的任何所需距离上。
We study the Casimir effect in a system composed of two Weyl semimetals (WSMs) separated by a gap filled with a chiral medium. We calculate the optical response of the material to chiral photons in order to calculate the Casimir force. We find that if the medium between the two WSMs is a Faraday material, a repulsive Casimir force can be obtained, and for realistic experimental parameters its magnitude can be greatly enhanced at short distances of a few microns Moreover, in the system under consideration various parameters can be modified. Some of them are intrinsic to the materials employed (the absolute value of the Hall conductivity of the WSM, the Verdet constant of the Faraday material), while some of them can be manipulated externally even for a fixed sample, such as the external magnetic field and the orientation of the plates which determines the sign of their conductivity. Suitable combinations of these parameters can be used to switch from attraction to repulsion, and to place the trapping distance, in which no force acts on the plates, at any desired distance between them.
