Chiral torsional effect with finite temperature, density, and curvature
Chiral torsional effect with finite temperature, density, and curvature
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DOI：
10.1103/physrevd.102.016001
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发表时间：
2020-04
影响因子：
5
通讯作者：
S. Imaki;Z. Qiu
中科院分区：
文献类型：
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作者：
S. Imaki;Z. Qiu
我们仔细研究了由时空扭转驱动的新型手性输运现象，即手性扭转效应（CTE）。我们在最一般的扭转重力理论中计算了具有有限温度、密度和曲率的扭转引起的手性电流。该结论补充了之前关于CTE的研究，包括曲率，并证实了CTE与Nieh-Yan异常之间的关系。我们还分析了手性扭转电流对外部电磁场的响应。由此产生的拓扑电流类似于轴子电动力学中的拓扑电流。
We scrutinize the novel chiral transport phenomenon driven by spacetime torsion, namely, the chiral torsional effect (CTE). We calculate the torsion-induced chiral currents with finite temperature, density, and curvature in the most general torsional gravity theory. The conclusion complements the previous study on the CTE by including curvature and substantiates the relation between the CTE and the Nieh-Yan anomaly. We also analyze the response of chiral torsional current to an external electromagnetic field. The resulting topological current is analogous to that in the axion electrodynamics.