Analysis of the classical phase space and energy transfer for two rotating dipoles with and without external electric field

  1. González-Férez, R. 3
  2. Iñarrea, M. 1
  3. Salas, J.P. 1
  4. Schmelcher, P. 2
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 University of Hamburg
    info

    University of Hamburg

    Hamburgo, Alemania

    ROR https://ror.org/00g30e956

  3. 3 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

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Revista:
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

ISSN: 1539-3755

Año de publicación: 2017

Volumen: 95

Número: 1

Tipo: Artículo

DOI: 10.1103/PHYSREVE.95.012209 SCOPUS: 2-s2.0-85010440498 WoS: WOS:000392284900008 GOOGLE SCHOLAR

Otras publicaciones en: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

Proyectos relacionados

Sistemas dinámicos hamiltonianos: métodos y aplicaciones en física atómica y molecular y otros campos de interes. Hamiltonian dynamical systems: methods and applications in atomic and molecular physics and other fields of interest.

2015/00070/001

Resumen

We explore the classical dynamics of two interacting rotating dipoles that are fixed in the space and exposed to an external homogeneous electric field. Kinetic energy transfer mechanisms between the dipoles are investigated by varying both the amount of initial excess kinetic energy of one of them and the strength of the electric field. In the field-free case, and depending on the initial excess energy, an abrupt transition between equipartition and nonequipartition regimes is encountered. The study of the phase space structure of the system as well as the formulation of the Hamiltonian in an appropriate coordinate frame provide a thorough understanding of this sharp transition. When the electric field is turned on, the kinetic energy transfer mechanism is significantly more complex and the system goes through different regimes of equipartition and nonequipartition of the energy including chaotic behavior. © 2017 American Physical Society.