Axions, Quantum Mechanical Pumping, and Primeval Magnetic Fields

J. Froehlich; B. Pedrini

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arXiv · cond-mat/0201236

Axions, Quantum Mechanical Pumping, and Primeval Magnetic Fields

J. Froehlich·B. Pedrini

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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.

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J. Froehlich, B. Pedrini. 2002-01-15. Axions, Quantum Mechanical Pumping, and Primeval Magnetic Fields. https://arxiv.org/abs/cond-mat/0201236

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