Interface fluctuations in disordered systems: Universality and non-Gaussian statistics
| dc.creator | Scheidl, Stefan | |
| dc.creator | Dincer, Yusuf | |
| dc.date | 2000-06-04 | |
| dc.date.accessioned | 2026-07-07T02:37:49Z | |
| dc.date.available | 2026-07-07T02:37:49Z | |
| dc.description | We employ a functional renormalization group to study interfaces in the presence of a pinning potential in $d=4-ε$ dimensions. In contrast to a previous approach [D.S. Fisher, Phys. Rev. Lett. {\bf 56}, 1964 (1986)] we use a soft-cutoff scheme. With the method developed here we confirm the value of the roughness exponent $ζ\approx 0.2083 ε$ in order $ε$. Going beyond previous work, we demonstrate that this exponent is universal. In addition, we analyze the generation of higher cumulants in the disorder distribution and the role of temperature as a dangerously irrelevant variable. | |
| dc.description | 11 pages, Latex, with 2 EPS figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0006048 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0006048 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16435 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Statistical Mechanics | |
| dc.title | Interface fluctuations in disordered systems: Universality and non-Gaussian statistics | |
| dc.type | text |