External Fields and Color Confinement
High Energy Physics - Lattice
2009-11-10 v1
Abstract
U(1), SU(2), and SU(3) lattice gauge theories in presence of external fields are investigated both in (3+1) and (2+1) dimensions. The free energy of gauge systems has been measured. While the phase transition in compact U(1) is not influenced by the strength of an external constant magnetic field, 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. The dependence of the deconfinement temperature on the strength of an external constant chromomagnetic field seems to be a peculiar feature of non abelian gauge theories.
Cite
@article{arxiv.hep-lat/0410007,
title = {External Fields and Color Confinement},
author = {P. Cea and L. Cosmai},
journal= {arXiv preprint arXiv:hep-lat/0410007},
year = {2009}
}
Comments
Lattice2004(topology), Fermilab, June 21-26, 2004, 3 pages