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 d = 2, with symmetric Fermi surface and up to exponentially small temperatures, close to the expected onset of superconductivity.
Benfatto, G., Giuliani, A., Mastropietro, V. (2003). Low temperature analysis of two-dimensional Fermi systems with symmetric Fermi surface. ANNALES HENRI POINCARE', 4(1), 137-193 [10.1007/s00023-003-0125-9].
Low temperature analysis of two-dimensional Fermi systems with symmetric Fermi surface.
BENFATTO, GIUSEPPE;GIULIANI, ALESSANDRO;MASTROPIETRO, VIERI
2003-01-01
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 d = 2, with symmetric Fermi surface and up to exponentially small temperatures, close to the expected onset of superconductivity.File in questo prodotto:
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