Listar Ciencias Exactas y Naturales por autor "Caldas, Ibere Luiz"

Mostrando ítems 1-5 de 5

    • Alternate islands of multiple isochronous chains in wave-particle interactions 

      Sousa, Meirielen Caetano de; Caldas, Ibere Luiz; Ozorio de Almeida, Alfredo Miguel; Rizzato, Felipe Barbedo; Pakter, Renato (2013) [Artículo de periódico]
      We analyze the dynamics of a relativistic particle moving in a uniform magnetic field and perturbed by a standing electrostatic wave. We show that a pulsed wave produces an infinite number of perturbative terms with the ...

    • Chaotic dynamics induced by space-charge waves in cyclotron resonance accelerators 

      Pakter, Renato; Caldas, Ibere Luiz; Couto, Flavia de Oliveira; Caetano, Tiberio Silva; Rizzato, Felipe Barbedo (1996) [Artículo de periódico]
      In this work, we analyze the effects produced by the inclusion of space-charge waves in a Hamiltonian model for a cyclotron resonant accelerator. We find that space charges impose limits on acceleration and that these ...

    • Chaotic particle heating due to an obliquely propagating wave in a magnetized plasma 

      Silva, Thales Marques Corrêa da; Pakter, Renato; Rizzato, Felipe Barbedo; Sousa, Meirielen Caetano de; Caldas, Ibere Luiz; Steffens, Fernanda Monti (2013) [Artículo de periódico]
      We study the dynamics of a relativistic charged particle in the presence of a uniform magnetic field and a stationary electrostatic wave that propagates at an arbitrary angle. The wave is considered as a series of periodic ...

    • Controlling chaos in wave-particle interactions 

      Sousa, Meirielen Caetano de; Caldas, Ibere Luiz; Rizzato, Felipe Barbedo; Pakter, Renato; Steffens, Fernanda Monti (2012) [Artículo de periódico]
      We analyze the behavior of a relativistic particle moving under the influence of a uniform magnetic field and a stationary electrostatic wave. We work with a set of pulsed waves that allows us to obtain an exact map for ...

    • Multiple island chains in wave-particle interactions 

      Sousa, Meirielen Caetano de; Caldas, Ibere Luiz; Ozorio de Almeida, Alfredo Miguel; Pakter, Renato; Rizzato, Felipe Barbedo (2015) [Artículo de periódico]
      We analyze the isochronous island chains that appear in the Poincaré sections of near integrable twist systems. When the system presents just one resonant perturbation with a winding number, the number of chains is constant ...