Axions, Quantum Mechanical Pumping, and Primeval Magnetic Fields
Condensed Matter
2007-05-23 v1
Abstract
We discuss the ordinary quantum Hall effect and a higher-dimensional cousin. We consider the dimensional reduction of these effects to 1+1 and 3+1 space-time dimensions, respectively. After dimensional reduction, an axion field appears, which plays the role of a space-time dependent difference of chemical potentials of chiral modes. As applications, we sketch a theory of quantum pumps and a mechanism for the generation of primeval magnetic fields in the early universe.
Cite
@article{arxiv.cond-mat/0201236,
title = {Axions, Quantum Mechanical Pumping, and Primeval Magnetic Fields},
author = {J. Froehlich and B. Pedrini},
journal= {arXiv preprint arXiv:cond-mat/0201236},
year = {2007}
}
Comments
15 pages, 1 figure, LaTeX2e, AMSLaTeX