论文标题
检测具有量热计的轴向仪表场
Detect Axial Gauge Fields with a Calorimeter
论文作者
论文摘要
Weyl半法中的扭转应变激发了沿扭转载体方向传播的单向性手性密度波。这种称为手性声波的无间隙激发是通过三轴(AAA)异常图对轴向异常的特殊实现产生的。我们表明,扭转产生的手性声音的存在导致Weyl Semimetal的特定热量的线性行为,并在实验可及的温度下增强了热导液的增强。我们还证明了这种弹性扭曲会降低样品的温度,从而产生一种新型异常的弹性效应。这些热力学效应的测量将提供外来三轴异常以及Weyl半法中弹性假磁场的现实的实验验证。
Torsional strain in Weyl semimetals excites a unidirectional chiral density wave propagating in the direction of the torsional vector. This gapless excitation, named the chiral sound wave, is generated by a particular realization of the axial anomaly via the triple-axial (AAA) anomalous diagram. We show that the presence of the torsion-generated chiral sound leads to a linear behavior of the specific heat of a Weyl semimetal and to an enhancement of the thermal conductivty at experimentally accessible temperatures. We also demonstrate that such an elastic twist lowers the temperature of the sample, thus generating a new, anomalous type of elasto-calorific effect. Measurements of these thermodynamical effects will provide experimental verification of the exotic triple-axial anomaly as well as the reality of the elastic pseudomagnetic fields in Weyl semimetals.