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arXiv 1005.4341hep-thcond-mat.mes-hall
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高维中的量子霍尔效应、玻色化和手征作用

Quantum Hall Effect, Bosonization and Chiral Actions in Higher Dimensions

Dimitra Karabali

摘要:

本文简要回顾了高维空间中的量子霍尔效应及其与模糊空间的关系。对于量子霍尔系统,最低朗道能级动力学由一维矩阵作用量给出。这可以用来写出一个玻色化的非对易场论,描述高维非相对论费米子与最低朗道能级的阿贝尔或非阿贝尔规范场的相互作用。这种一般方法被明确地应用于${\bf CP}^k$上的QHE的情况。结果表明,在半经典极限的有效行动包含一个散装陈-西蒙斯型项,其异常是完全取消的手征,规范Wess-Zumino-Witten行动适当推广到更高的维度方面的边界项。

英文摘要:

We give a brief review of the Quantum Hall effect in higher dimensions and its relation to fuzzy spaces. For a quantum Hall system, the lowest Landau level dynamics is given by a one-dimensional matrix action. This can be used to write down a bosonized noncommutative field theory describing the interactions of higher dimensional nonrelativistic fermions with abelian or nonabelian gauge fields in the lowest Landau level. This general approach is applied explicitly to the case of QHE on ${\bf CP}^k$. It is shown that in the semiclassical limit the effective action contains a bulk Chern-Simons type term whose anomaly is exactly canceled by a boundary term given in terms of a chiral, gauged Wess-Zumino-Witten action suitably generalized to higher dimensions.

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。

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