arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1407.2616hep-thcond-mat.str-el
收藏

大厅运输的沃德恒等式

Ward Identities for Hall Transport

Carlos Hoyos, Bom Soo Kim, Yaron Oz

摘要:

基于线性保面积变换和保角变换,我们导出了2+1维空间中的量子场论沃德恒等式。这些恒等式涉及霍尔粘度、霍尔电导率和角动量。它们适用于相对论和非相对论系统,在零温度和有限温度。我们考虑了具有或不具有平移不变性的系统,并引入了外部磁场和粘性阻力项。一个特殊的情况下的身份产生众所周知的霍尔电导率和角动量密度的一半之间的关系。

英文摘要:

We derive quantum field theory Ward identities based on linear area preserving and conformal transformations in 2+1 dimensions. The identities relate Hall viscosities, Hall conductivities and the angular momentum. They apply both for relativistic and non relativistic systems, at zero and at finite temperature. We consider systems with or without translation invariance, and introduce an external magnetic field and viscous drag terms. A special case of the identities yields the well known relation between the Hall conductivity and half the angular momentum density.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑