Some non perturbative calculations on spin glasses
| Autor: | Matteo Campellone |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1994 |
| Předmět: |
Physics
Phase transition Spin glass Random energy model Condensed Matter (cond-mat) General Physics and Astronomy FOS: Physical sciences Statistical and Nonlinear Physics Condensed Matter Condensed Matter::Disordered Systems and Neural Networks Quantum mechanics Saddle point Metastability Thermodynamic limit Non-perturbative Mathematical Physics Ansatz |
| Popis: | Models of spin glasses are studied with a phase transition discontinuous in the Parisi order parameter. It is assumed that the leading order corrections to the thermodynamic limit of the high temperature free energy are due to the existence of a metastable saddle point in the replica formalism. An ansatz is made on the form of the metastable point and its contribution to the free energy is calculated. The Random Energy Model is considered along with the p-spin and the p-state Potts Models in their p < infinity expansion. 12 pages, LaTeX |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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