External magnetic fields in gauge theories
L. Gamberale, G. Preparata, She-Sheng XUE
TL;DR
This paper discusses how gauge-field systems respond to external magnetic fields, clarifying recent lattice simulation results and explaining the phenomenon of perfect diamagnetism in non-abelian gauge theories.
Contribution
It provides a general theoretical framework for understanding gauge systems' responses to magnetic fields, incorporating Elitzur's theorem and explaining previous puzzling findings.
Findings
Clarifies the response of gauge theories to magnetic fields
Explains the phenomenon of perfect diamagnetism in non-abelian gauge theories
Provides a unified understanding of recent lattice simulation results
Abstract
A general discussion is presented of the response of a gauge-field system to external magnetic fields, in the light of a theorem due to S. Elitzur. As a result a natural understanding emerges of some recent puzzling results from lattice MC simulations, as well as of the phenomenon of ``perfect diamagnetism'' of non-abelian gauge theories, discovered almost ten years ago.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Black Holes and Theoretical Physics