Massless Three Dimensional Quantum Electrodynamics and Thirring Model Constrained by Large Flavor Number

Details Massless Three Dimensional Quantum Electrodynamics and Thirring Model Constrained by Large Flavor Number Massless Three Dimensional Quantum Electrodynamics and Thirring Model Constrained by Large Flavor Number

2005-12-24

arxiv.org/abs/hep-th/0512307v1

Mod.Phys.Lett.A21:1451-1462,2006

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1142/S021773230601992X

We explicitly prove that in three dimensional massless quantum electrodynamics at finite temperature, zero density and large number of flavors the number of infrared degrees of freedom is never larger than the corresponding number of ultraviolet. Such a result, strongly dependent on the asymptotic freedom of the theory, is reversed in three dimensional Thirring model due to the positive derivative of its running coupling constant.

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