Long-range correlations in Boltzmann-Langevin model

Abstract The average phase-space density described by the Boltzmann-Langevin model can largely deviate from the one provided by the Boltzmann-Uhling-Uhlenbeck model, due to the non-linear evolution of density fluctuations. This aspect is investigated for long-wavelength, small density fluctuations i... Ausführliche Beschreibung

1. Person: Ayik, Sakir
Quelle: in The European physical journal Vol. 350 (1994), p. 45-49
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Format: Online-Artikel
Genre: 05.60.+w, 05.40.+j, 21.65.+f
Sprache: English
Veröffentlicht: 1994
Beschreibung: Online-Ressource
Online Zugang: Online
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Anmerkung: Copyright: Copyright 1994 Springer-Verlag
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520 |a Abstract The average phase-space density described by the Boltzmann-Langevin model can largely deviate from the one provided by the Boltzmann-Uhling-Uhlenbeck model, due to the non-linear evolution of density fluctuations. This aspect is investigated for long-wavelength, small density fluctuations in the framework of a memory incorporated Boltzmann-Langevin model. It is shown that the correlations associated with density fluctuations yield a collision term describing coupling between the collective vibrations and the single-particle degrees of freedom, which may play an important role in damping of collective motion in both the stable and unstable regions. 
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