Artículos de revistas
Fermi acceleration on the annular billiard: a simplified version
Fecha
2006-04-07Registro en:
Journal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 39, n. 14, p. 3561-3573, 2006.
0305-4470
10.1088/0305-4470/39/14/005
WOS:000237152500008
7497781556622328
6130644232718610
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
A simplified version of a time-dependent annular billiard is studied. The dynamics is described using nonlinear maps and we consider two different configurations for the billiard, namely (i) concentric and (ii) eccentric cases. For the concentric case and for a null angular momentum, we confirm that the results for the Fermi-Ulam model are recovered and the particle does not experience the phenomenon of Fermi acceleration. However, on the eccentric case the particle demonstrates unlimited energy gain and Fermi acceleration is therefore observed.