1995/03/08 by Feldman, Joel, Magnen, Jacques, Rivasseau, Vincent +1
#Condensed Matter (cond-mat) #FOS: Physical sciences #High Energy Physics - Theory (hep-th)
paper · doi:10.48550/arxiv.cond-mat/9503047
In these notes we give a very rough sketch of nonperturbative methods of many body quantum field theory that are powerful enough to rigorously control weak coupling instabilities in condensed matter phyics, for example, the Cooper instability in an electron - phonon system.