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New applications of the chiral anomaly

Authors
  • Fröhlich, J.
  • Pedrini, B.
Type
Preprint
Publication Date
Mar 01, 2000
Submission Date
Feb 23, 2000
Identifiers
arXiv ID: hep-th/0002195
Source
arXiv
License
Unknown
External links

Abstract

We describe consequences of the chiral anomaly in the theory of quantum wires, the (quantum) Hall effect, and of a four-dimensional cousin of the Hall effect. We explain which aspects of conductance quantization are related to the chiral anomaly. The four-dimensional analogue of the Hall effect involves the axion field, whose time derivative can be interpreted as a (space-time dependent) difference of chemical potentials of left-handed and right-handed charged fermions. Our four-dimensional analogue of the Hall effect may play a significant role in explaining the origin of large magnetic fields in the (early) universe.

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