ON THE USE OF THE TIME-DEPENDENT RAYLEIGH-RITZ EQUATIONS FOR HEAVY-ION COLLISIONS

被引：7

作者：

CORIANO, C ^{[1
]}

PARWANI, R ^{[1
]}

YAMAGISHI, H ^{[1
]}

机构：

[1] CTR NAZL RIC SVILUPPO MAT,BRINDISI,ITALY

来源：

NUCLEAR PHYSICS A | 1991年 / 522卷 / 3-4期

关键词：

D O I：

10.1016/0375-9474(91)90083-I

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：

The structure of the time-dependent Rayleigh-Ritz equations is investigated with potential simulations of heavy-ion collisions in mind. It is shown that the equations have a canonical (hamiltonian) structure, and the relation between Noether's theorem and Ehrenfest's theorem is discussed. The canonical variables are explicitly worked out for the two-body case, where a forbidden region in phase space automatically appears. It is noted, however, that the use of fixed-width gaussians leads to pathologies. We also find that a recent proposal to incorporate spin through Slater determinants leads to a singular equations of motion, and a remedy is suggested.

引用

页码：591 / 609

页数：19

共 29 条

[1] QUANTUM MOLECULAR-DYNAMICS APPROACH TO HEAVY-ION COLLISIONS - DESCRIPTION OF THE MODEL, COMPARISON WITH FRAGMENTATION DATA, AND THE MECHANISM OF FRAGMENT FORMATION [J].