Fermionic molecular dynamics

被引:51
作者
Feldmeier, H
Schnack, J
机构
来源
PARTICLE AND NUCLEAR PHYSICS, VOL 39 | 1997年 / 39卷
关键词
fermion system; molecular dynamics; fermionic molecular dynamics; heavy ion collisions; deeply inelastic reactions; multifragmentation; thermodynamic properties; liquid-gas phase transition;
D O I
10.1016/S0146-6410(97)00047-1
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
A quantum molecular model for fermions is investigated which works with antisymmetrized many-body states composed of localized single-particle wave packets. The application to the description of atomic nuclei and collisions between them shows that the model is capable to address a rich variety of observed phenomena. Among them are shell effects, cluster structure and intrinsic deformation in ground states of nuclei as well as fusion, incomplete fusion, dissipative binary collisions and multifragmentation in reactions depending on impact parameter and beam energy. Thermodynamic properties studied with long time simulations proof that the model obeys Fermi-Dirac statistics and time averaging is equivalent to ensemble averaging. A first order liquid-gas phase transition is observed at a boiling temperature of T approximate to 5 MeV for finite nuclei of mass 16...40.
引用
收藏
页码:393 / 442
页数:50
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