1996/01/09 by Akira Ono, Hisashi Horiuchi · 106 citations
Chemistry · Mathematics · Physics and Astronomy · #Branching (polymer chemistry) #Chemistry #Classical mechanics #Computer science #Distribution (mathematics) #Dynamics (music) #Fragmentation (computing) #High-Energy Particle Collisions Research #Master equation #Mathematical analysis #Mathematics #Molecular dynamics #Nuclear physics research studies #Physics #Plasma #Quantum #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Statistical physics #Vlasov equation #Wave packet #nucl-th
paper · pdf · doi:10.1103/physrevc.53.2958
published in Physical Review C 53(6), 2958-2972 (American Institute of Physics) · 26 pages, LaTeX with revtex and epsf, embedded postscript figures
arxiv created 1996/01/09 · openalex publication_date 1996/06/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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. \textcopyright 1996 The American Physical Society.