A peculiar Maxwell's Demon observed in a time-dependent stadium-like billiard
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
23/10/2013
23/10/2013
2012
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| Resumo |
The dynamics of a driven stadium-like billiard is considered using the formalism of discrete mappings. The model presents a resonant velocity that depends on the rotation number around fixed points and external boundary perturbation which plays an important separation rule in the model. We show that particles exhibiting Fermi acceleration (initial velocity is above the resonant one) are scaling invariant with respect to the initial velocity and external perturbation. However, initial velocities below the resonant one lead the particles to decelerate therefore unlimited energy growth is not observed. This phenomenon may be interpreted as a specific Maxwell's Demon which may separate fast and slow billiard particles. (C) 2012 Elsevier B.V. All rights reserved. FAPESP FAPESP CNPq CNPq |
| Identificador |
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, AMSTERDAM, v. 391, n. 20, supl., Part 3, pp. 4756-4762, OCT 15, 2012 0378-4371 http://www.producao.usp.br/handle/BDPI/35675 10.1016/j.physa.2012.05.002 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE BV AMSTERDAM |
| Relação |
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS |
| Direitos |
closedAccess Copyright ELSEVIER SCIENCE BV |
| Palavras-Chave | #STADIUM BILLIARD #NONLINEAR MAPPING #FERMI ACCELERATION #SCALING #CHAOS #DYNAMICS #TORI #PHYSICS, MULTIDISCIPLINARY |
| Tipo |
article original article publishedVersion |
