Dissipation as a mechanism of energy gain.
Some properties of the annular billiard under the presence of weak dissipation are studied. We show, in a dissipative system, that the average energy of a particle acquires higher values than its average energy of the conservative case. The creation of attractors, associated with a chaotic dynamics in the conservative regime, both in appropriated regions of the phase space, constitute a generic mechanism to increase the average energy of dynamical systems.
Departamento de Estatística, Matemática Aplicada e Computação-DEMAC, Instituto de Geociências e Ciências Exatas-IGCE, Universidade Estadual Paulista-UNESP, Rio Claro, SP, Brazil. regydio@rc.unesp.br
R
R
Egydio de Carvalho
C
C
Vieira Abud
F
F
Caetano Souza