Color dynamics in external fields

2005/05/11 by Paolo Cea, Leonardo Cosmai · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.1088/1126-6708/2005/08/079

published as JHEP0508:079,2005 · 26 pages, 14 figures

arxiv created 2005/05/11 · openalex publication_date 2005/08/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29

Abstract

We investigate the vacuum dynamics of U(1), SU(2), and SU(3) lattice gauge theories in presence of external (chromo)magnetic fields, both in (3+1) and (2+1) dimensions. We find that the critical coupling for the phase transition in compact U(1) gauge theory is independent of the strength of an external magnetic field. On the other hand we find that, both in (3+1) and (2+1) dimensions, the deconfinement temperature for SU(2) and SU(3) gauge systems in a constant abelian chromomagnetic field decreases when the strength of the applied field increases. We conclude that the dependence of the deconfinement temperature on the strength of an external constant chromomagnetic field is a peculiar feature of non abelian gauge theories and could be useful to get insight into color confinement.

Citations

• The lattice Schrödinger functional and the background field effective action
• Gluodynamics in external field in dual superconductor approach
• QCD and instantons at finite temperature
• Order and disorder in gauge systems and magnets
• The Schrödinger functional — a renormalizable probe for non-abelian gauge theories
• Dual Meissner effect and string tension in SU(2) lattice gauge theory
• Color confinement and dual superconductivity of the vacuum. I
• Probing the nonperturbative dynamics of the SU(2) vacuum
• Exceptional confinement in G(2) gauge theory

Cited by

• Magnetic Susceptibility of Strongly Interacting Matter across the Deconfinement Transition