Particle motion in a photon gas: friction matters (Articolo in rivista)

Type
Label
  • Particle motion in a photon gas: friction matters (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bini D., Gregoris D., Rosquist K., Succi S. (2012)
    Particle motion in a photon gas: friction matters
    in General relativity and gravitation
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bini D., Gregoris D., Rosquist K., Succi S. (literal)
Pagina inizio
  • 2669 (literal)
Pagina fine
  • 2680 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 44 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \institute{ Donato Bini Istituto per le Applicazioni del Calcolo ``M. Picone,'' CNR, I--00161 Rome, Italy ICRA, University of Rome ``La Sapienza,'' I--00185 Rome, Italy INFN - Sezione di Firenze, Polo Scientifico, Via Sansone 1, I--50019, Sesto Fiorentino (FI), Italy Daniele Gregoris Physics Department University of Stockholm, ICRA, University of Rome ``La Sapienza,'' I--00185 Rome, Italy Kjell Rosquist Physics Department University of Stockholm, ICRANet, Piazza della Repubblica, 10 I--65122 Pescara, Italia Sauro Succi Istituto per le Applicazioni del Calcolo ``M. Picone,'' CNR, I--00161 Rome, Italy (literal)
Titolo
  • Particle motion in a photon gas: friction matters (literal)
Abstract
  • The motion of a particle in the Tolman metric generated by a photon gas source is discussed. Both the case of geodesic motion and motion with nonzero friction, due to photon scattering effects, are analyzed. In the Minkowski limit, the particle moves along a straight line segment with a decelerated motion, reaching the endpoint at zero speed. The curved case shows a qualitatively different behavior; the geodesic motion consists of periodic orbits, confined within a specific radial interval. Under the effect of frictional drag, this radial interval closes up in time and in all our numerical simulations the particle ends up in the singularity at the center. (literal)
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