QMD simulation of expanding nuclear matter

被引：10
|
作者：
Chikazumi, S [1 ]
Maruyama, T
Nitta, K
Iwamoto, A
机构：
[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3050006, Japan
[2] Japan Atom Energy Res Inst, Dept Mat Sci, Tokai, Ibaraki 3191195, Japan
[3] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[4] Res Org Informat Sci & Technol, Tokai, Ibaraki 3191195, Japan
来源：
PHYSICS LETTERS B | 2000年 / 476卷 / 3-4期
关键词：
multifragmentation; phase transition; nuclear matter;
D O I：
10.1016/S0370-2693(00)00161-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the properties of dynamically expanding nuclear matter. For this purpose, we apply quantum molecular dynamics (QMD) model to homogeneously expanding three-dimensional system with periodic boundary condition. Simulation is performed for given initial temperatures and expanding velocities. The calculated fragment mass distribution for slow expansion obeys the power law predicted by Fisher's droplet model, while that for rapid expansion exhibits the exponential shape. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：273 / 278
页数：6
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