Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-09-11
JHEP 0807:080,2008
Physics
High Energy Physics
High Energy Physics - Theory
33 pages, multiple figures
Scientific paper
10.1088/1126-6708/2008/07/080
Using a ten dimensional dual string background, we study aspects of the physics of finite temperature large N four dimensional SU(N) gauge theory, focusing on the dynamics of fundamental quarks in the presence of a background magnetic field. At vanishing temperature and magnetic field, the theory has N=2 supersymmetry, and the quarks are in hypermultiplet representations. In a previous study, similar techniques were used to show that the quark dynamics exhibit spontaneous chiral symmetry breaking. In the present work we begin by establishing the non-trivial phase structure that results from finite temperature. We observe, for example, that above the critical value of the field that generates a chiral condensate spontaneously, the meson melting transition disappears, leaving only a discrete spectrum of mesons at any temperature. We also compute several thermodynamic properties of the plasma.
Albash Tameem
Filev Veselin
Johnson Clifford V.
Kundu Arnab
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