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New applications of the chiral anomaly | | J. Fröhlich
; B. Pedrini
; | | Date: |
23 Feb 2000 | | Subject: | hep-th | | 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. | | Source: | arXiv, hep-th/0002195 | | Services: | Forum | Review | PDF | Favorites | |
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