Color dynamics in external fields | Zendy

Paolo Cea | Zendy; Leonardo Cosmai | Zendy

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Color dynamics in external fields

Author(s) -

Paolo Cea,

Leonardo Cosmai

Publication year - 2005

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2005/08/079

Subject(s) - deconfinement , physics , gauge theory , field strength , coupling constant , lattice gauge theory , gauge (firearms) , introduction to gauge theory , hamiltonian lattice gauge theory , magnetic field , phase transition , lattice (music) , abelian group , condensed matter physics , quantum electrodynamics , quantum mechanics , mathematics , materials science , combinatorics , acoustics , metallurgy

We investigate the vacuum dynamics of U(1), SU(2), and SU(3) lattice gaugetheories in presence of external (chromo)magnetic fields, both in (3+1) and(2+1) dimensions. We find that the critical coupling for the phase transitionin compact U(1) gauge theory is independent of the strength of an externalmagnetic 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 ina constant abelian chromomagnetic field decreases when the strength of theapplied field increases. We conclude that the dependence of the deconfinementtemperature on the strength of an external constant chromomagnetic field is apeculiar feature of non abelian gauge theories and could be useful to getinsight into color confinement.Comment: 26 pages, 14 figure

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