Critical scaling of finite temperature QED_3 in anisotropic space-time
arXiv:1201.6139 · doi:10.1016/j.physletb.2012.11.004
Abstract
We investigate the scaling behavior of the critical temperature of anisotropic QED in 2+1 dimensions with respect to a variation of the number of fermions N_f. To this end we determine the order parameter of the chiral transition of the theory from a set of (truncated) Dyson-Schwinger equations for the fermion propagator formulated in a finite volume. We verify the validity of previously determined universal power laws for the scaling behavior of the critical temperature with N_f. We furthermore study the variation of the corresponding critical exponent with the degree of anisotropy and find considerable variations.
7 pages, 6 figures v2: clarifications added, typos corrected, version accepted by Phys. Lett. B
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