- 02-299 G. Benfatto, A. Giuliani, V. Mastropietro
- Low temperature analysis of two dimensional Fermi systems with symmetric Fermi surface
Jul 9, 02
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Abstract. We prove the convergence of the perturbative expansion, based on Renormalization Group, of the two point Schwinger function of a system of weakly interacting fermions in two dimensions, with symmetric Fermi surface and up to exponentially small temperatures, close to the expected onset of superconductivity.