Continuous Chiral Transition in Strongly Coupled Compact QED with the Standard Torus Topology

Details Continuous Chiral Transition in Strongly Coupled Compact QED with the Standard Torus Topology Continuous Chiral Transition in Strongly Coupled Compact QED with the Standard Torus Topology

1997-05-09

arxiv.org/abs/hep-lat/9705014v1

Phys.Lett. B416 (1998) 409-414

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages, latex, 1 figure

Scientific paper

10.1016/S0370-2693(97)01338-5

We analyze the phase diagram of compact QED on the torus with a chirally symmetric four fermion interaction added to the usual Wilson action. Inside a mean field approximation for the four fermion term, a line of first order phase transitions and another one of second order are found in the $(\beta, G)$ plane. Approaching the second order line a continuum limit can be defined. Critical exponents vary along this line in a similar way as in the non-compact model, suggesting that a non trivial interacting continuum theory can be constructed.

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