Quantum Hall Effect, Bosonization and Chiral Actions in Higher Dimensions

Details Quantum Hall Effect, Bosonization and Chiral Actions in Higher Dimensions Quantum Hall Effect, Bosonization and Chiral Actions in Higher Dimensions

2010-05-24

arxiv.org/abs/1005.4341v1

Physics

High Energy Physics

High Energy Physics - Theory

Talk at QTS6 Conference, Univ. of Kentucky. To appear in the QTS6 proceedings

Scientific paper

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.

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