Two-Loop Renormalization of the Quasiparticle Weight in Two-Dimensional Electron Systems
arXiv:cond-mat/9911115 · doi:10.1142/9789812792754_0013
Abstract
We apply the renormalization-group (RG) approach to two model systems where the two-dimensional Fermi surface has portions which give rise to the logarithmically singular two-loop self-energy process.
4 pages, 4 figures, to appear in the Proceedings of the 10th International Conference on Recent Progress in Many-Body Theories (MBX), Seattle, WA, 10-15 Sep 1999, R. F. Bishop et al. (eds.), World Scientific (Singapore)