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Finite-size effects on the phase transition in a four- and six-fermion interaction model |
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| Authors: | L.M. Abreu F.C. Khanna A.P.C. Malbouisson J.M.C. Malbouisson A.E. Santana |
| Affiliation: | 1. Instituto de Física, Universidade Federal da Bahia, 40210-340, Salvador, BA, Brazil;2. Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 5C2, Canada;3. TRIUMF, Vancouver, BC, V6T 2A3, Canada;4. Centro Brasileiro de Pesquisas Físicas, MCTI, 22290-180, Rio de Janeiro, RJ, Brazil;5. International Center for Condensed Matter Physics, Instituto de Física, Universidade de Brasília, 70910-900, Brasília, DF, Brazil |
| Abstract: | We consider four- and six-fermion interacting models at finite temperature and density. We construct the corresponding free energies and investigate the appearance of first- and second-order phase transitions. Finite-size effects on the phase structure are investigated using methods of quantum field theory on toroidal topologies. |
| Keywords: | Phase transition Finite-temperature field theory Finite-size effects |
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