On A Local Carnot Engine
| dc.creator | Trimper, Steffen | |
| dc.creator | Artz, Simone | |
| dc.date | 1999-03-25 | |
| dc.date.accessioned | 2026-07-07T03:13:07Z | |
| dc.date.available | 2026-07-07T03:13:07Z | |
| dc.description | Starting from a master equation in a quantum Hamilton form we study analytically a nonequilibrium system which is coupled locally to two heat bathes at different temperatures. Based on a lattice gas description an evolution equation for the averaged density in the presence of a temperature gradient is derived. Firstly, the case is analysed where a particle is removed from a heat bath at a fixed temperature and is traced back to the bath at another temperature. The stationary solution and the relaxation time is discussed. Secondly, a collective hopping process between different heat bathes is studied leading to an evolution equation which offers a bilinear coupling between density and temperature gradient contrary to the conventional approach. Whereas in case of a linear decreasing static temperature field the relaxtion time offers a continuous spectrum it results a discrete spectrum for a quadratically decreasing temperature profile. | |
| dc.description | 9 pages, Revtex, to be published in Int. J. of Mod. Phys. B | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9903376 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9903376 | |
| dc.identifier | Int. J. Mod. Phys. B 13 (1999) 375 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29174 | |
| dc.subject | Statistical Mechanics | |
| dc.title | On A Local Carnot Engine | |
| dc.type | text |