Self Avoiding Walks and Field Theory: Rigorous Renormalization Group Analysis. Auteur(s): Mitter P.
Conférence invité: What is Quantum Field Theory? (Benasque, ES, 2011-09-14) Ref HAL: hal-00656639_v1 Exporter : BibTex | endNote Résumé: I give a review of some rigorous results on self avoiding walks in cubic and hypercubic lattices, including the case of self-avoiding Levy walks. I then explain the connection with supersymmetric field theory and go on to give an exposition of rigorous renormalization group analysis of the supersymmetric measure in the particular case of self avoiding Levy walks below the critical dimension. The talk is based on my joint work with D. Brydges and G. Guadagni (J.Stat.Phys. 115, 415-449 (2004), further work with D.Brydges (2011, in preparation) on finite range multiscale expansions. The renormalization group analysis of the supersymmetric measure based on the above expansions is carried out in joint work with B. Scoppola (J.Stat.Phys. 133, 921-1011 (2008)). Commentaires: International workshop held at the Centro de Ciencias de Benasque Pedro Pascual, Benasque, Espagne |