Artigo
Dynamics of a charged particle in a dissipative Fermi-Ulam model
Registration in:
Communications In Nonlinear Science And Numerical Simulation, v. 20, n. 2, p. 546-558, 2015.
1007-5704
10.1016/j.cnsns.2014.06.003
WOS:000341357400018
6130644232718610
Author
Ladeira, Denis Gouvea
Leonel, Edson D. [UNESP]
Abstract
The dynamics of a metallic particle confined between charged walls is studied. One wall is fixed and the other moves smoothly and periodically in time. Dissipation is considered by assuming a friction produced by the contact between the particle and a rough surface. We investigate the phase space of the simplified and complete versions of the model. Our results include (i) coexistence of islands of regular motion with an attractor located at the low energy portion of phase space in the complete model and; (ii) coexistence of attractors with trajectories that present unlimited energy growth in the simplified model. (C) 2014 Elsevier B.V. All rights reserved. Center for Scientific Computing (NCC/GridUNESP) of the Sao Paulo State University (UNESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação para o Desenvolvimento da UNESP (FUNDUNESP) UFSJ Univ Fed Sao Joao del Rei, Dept Fis &Matemat, BR-36420000 Ouro Branco, MG, Brazil UNESP Univ Estadual Paulista, Dept Fis, BR-13506900 Rio Claro, SP, Brazil Universidade Estadual Paulista, Departamento de Física, BR-13506900 Rio Claro, SP, Brazil FAPESP: 2011/51041-3 FAPESP: 2010/52709-5 FAPESP: 2012/18962-0 FAPESP: 2013/22764-2