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EnglishWe analyze the phase diagram of compact QED on the torus with a chirally symmetric four fermion interaction. 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.
http://hdl.handle.net/11697/11178| Titolo: | Continuous chiral transition in strongly coupled compact QED with the standard torus topology |
| Autori interni: | GALANTE, ANGELO |
| Data di pubblicazione: | 1998 |
| Rivista: | PHYSICS LETTERS. SECTION B |
| Abstract: | We analyze the phase diagram of compact QED on the torus with a chirally symmetric four fermion interaction. 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. |
| Handle: | http://hdl.handle.net/11697/11178 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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