Another critique of the replica trick
| dc.creator | Zirnbauer, Martin R. | |
| dc.date | 1999-03-22 | |
| dc.date.accessioned | 2026-07-07T03:13:06Z | |
| dc.date.available | 2026-07-07T03:13:06Z | |
| dc.description | Kamenev and Mezard, and Yurkevich and Lerner, have recently shown how to reproduce the large-frequency asymptotics of the energy level correlations for disordered electron systems, by doing perturbation theory around the saddles of the compact nonlinear sigma model derived from fermionic replicas. We present a critical review of their procedure and argue that its validity is limited to the perturbative regime of large frequency. The miraculous exactness of the saddle-point answer for beta = 2 (unitary symmetry) in the universal limit, is shown to be a special feature due to the Duistermaat-Heckman theorem. | |
| dc.description | LateX, 21 pages, no figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9903338 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9903338 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29166 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Another critique of the replica trick | |
| dc.type | text |