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Title: Impact of the strong electromagnetic field on the QCD effective potential for homogeneous Abelian gluon field configurations

The one-loop quark contribution to the QCD effective potential for the homogeneous Abelian gluon field in the presence of an external strong electromagnetic field is evaluated. The structure of extrema of the potential as a function of the angles between chromoelectric, chromomagnetic, and electromagnetic fields is analyzed. In this setup, the electromagnetic field is considered as an external one while the gluon field represents domain structured nonperturbative gluon configurations related to the QCD vacuum in the confinement phase. Two particularly interesting gluon configurations, (anti-)self-dual and crossed orthogonal chromomagnetic and chromoelectric fields, are discussed specifically. Within this simplified framework it is shown that the strong electromagnetic fields can play a catalyzing role for a deconfinement transition. At the qualitative level, the present consideration can be seen as a highly simplified study of an impact of the electromagnetic fields generated in relativistic heavy ion collisions on the strongly interacting hadronic matter.
Authors:
;  [1]
  1. Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna (Russian Federation) and Department of Theoretical Physics, Dubna International University, 141980 Dubna (Russian Federation)
Publication Date:
OSTI Identifier:
21608023
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 84; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.84.094017; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CONFIGURATION; CONFINEMENT; ELECTRIC FIELDS; ELECTROMAGNETIC FIELDS; GLUONS; HADRONS; HEAVY ION REACTIONS; MAGNETIC FIELDS; QUANTUM CHROMODYNAMICS; QUARKS; RELATIVISTIC RANGE BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; NUCLEAR REACTIONS; QUANTUM FIELD THEORY