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Low temperature analysis of two dimensional Fermi systems with symmetric Fermi surface

Giuseppe Benfatto·Alessandro Giuliani·Vieri Mastropietro
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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 d=2, with symmetric Fermi surface and up to exponentially small temperatures, close to the expected onset of superconductivity

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Giuseppe Benfatto, Alessandro Giuliani, Vieri Mastropietro. 2002-07-08. Low temperature analysis of two dimensional Fermi systems with symmetric Fermi surface. https://doi.org/10.1007/s00023-003-0125-9

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