Antisymmetrized molecular dynamics of wave packets with stochastic incorporation of the Vlasov equation

Akira Ono, Hisashi Horiuchi

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

On the basis of the antisymmetrized molecular dynamics (AMD) of wave packets for the quantum system, a novel model (called AMD-V) is constructed by the stochastic incorporation of the diffusion and the deformation of wave packets which is calculated by the Vlasov equation without any restriction on the one-body distribution. In other words, the stochastic branching process in molecular dynamics is formulated so that the instantaneous time evolution of the averaged one-body distribution is essentially equivalent to the solution of the Vlasov equation. Furthermore, as usual molecular dynamics, AMD-V keeps the many-body correlation and can naturally describe the fluctuation among many channels of the reaction. It is demonstrated that the newly introduced process of AMD-V has drastic effects in heavy ion collisions of 40Ca+40Ca at 35 MeV/nucleon, especially on the fragmentation mechanism, and AMD-V reproduces the fragmentation data very well. Discussions are given on the interrelation among the frameworks of AMD, AMD-V, and other microscopic models developed for the nuclear dynamics.

Original languageEnglish
Pages (from-to)2958-2972
Number of pages15
JournalPhysical Review C - Nuclear Physics
Volume53
Issue number6
DOIs
Publication statusPublished - 1996 Jun

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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