Generalized Gauged Thirring Model on Curved Space-Times

Details Generalized Gauged Thirring Model on Curved Space-Times Generalized Gauged Thirring Model on Curved Space-Times

1993-08-13

arxiv.org/abs/hep-th/9308067v1

Physics

High Energy Physics

High Energy Physics - Theory

70 pages PlainTex

Scientific paper

We analyse the interacting theory of charged fermions, scalars, pseuso-scalars and photons propagating in 2-dimensional curved spacetime in detail. For certain values of the coupling constants the theory reduces to the gauged Thirring model and for others the Schwinger model incurved spacetime. It is shown that the interaction of the fermions with the pseudo-scalars shields the electromagnetic interaction, and that the non-minimal coupling of the scalars to the gravitational field amplifies the Hawking radiation. We solve the finite temperature and density model by using functional techniques and in particular derive the exact equation of state. The explicit temperature and curvature dependence of the chiral condensate is found. When the electromagnetic field is switched off the model reduces to a conformal field theory. We determine the physically relevant expectation values and conformal weights of the fundamental fields in the theory.

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