Creep motion of an elastic string in a random potential
| dc.creator | Kolton, Alejandro B. | |
| dc.creator | Rosso, Alberto | |
| dc.creator | Giamarchi, Thierry | |
| dc.date | 2004-08-12 | |
| dc.date.accessioned | 2026-07-07T06:21:01Z | |
| dc.date.available | 2026-07-07T06:21:01Z | |
| dc.description | We study the creep motion of an elastic string in a two dimensional pinning landscape by Langevin dynamics simulations. We find that the Velocity-Force characteristics are well described by the creep formula predicted from phenomenological scaling arguments. We analyze the creep exponent $μ$, and the roughness exponent $ζ$. Two regimes are identified: when the temperature is larger than the strength of the disorder we find $μ\approx 1/4$ and $ζ\approx 2/3$, in agreement with the quasi-equilibrium-nucleation picture of creep motion; on the contrary, lowering enough the temperature, the values of $μ$ and $ζ$ increase showing a strong violation of the latter picture. | |
| dc.description | 4 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0408284 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0408284 | |
| dc.identifier | Phys. Rev. Lett. 94, 047002 (2005) | |
| dc.identifier | doi:10.1103/PhysRevLett.94.047002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/95472 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Statistical Mechanics | |
| dc.title | Creep motion of an elastic string in a random potential | |
| dc.type | text |