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arXiv:2609.21182hep-th

The Chern-Simons Function and the Quantum Hall Effect

Edward Witten

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Abstract

In this article, I will define the Chern-Simons invariant of a gauge connection over a three-manifold and explain some of the things that are special about it, in particular its role in understanding the quantum Hall effect, which is an important effect in condensed matter physics, and its generalization, the fractional quantum Hall effect. (The article is based on a lecture at a conference celebrating the 75th birthday of James Simons, held at the CUNY Graduate Center in 2013. It will appear in the Bulletin of the American Math Society.

arXiv comments
17 pp, minor corrections in v. 2
Journal reference
DOI
Subjects
hep-thHigh Energy Physics, Theory

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