Molecular dynamics simulations of ballistic annihilation

被引：11
|
作者：
Lipowski, A [1 ]
Lipowska, D
Ferreira, AL
机构：
[1] Adam Mickiewicz Univ, Fac Phys, PL-61614 Poznan, Poland
[2] Adam Mickiewicz Univ, Inst Linguist, PL-60371 Poznan, Poland
[3] Univ Aveiro, Dept Phys, P-3810 Aveiro, Portugal
来源：
PHYSICAL REVIEW E | 2006年 / 73卷 / 03期
关键词：
D O I：
10.1103/PhysRevE.73.032102
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Using event-driven molecular dynamics we study one- and two-dimensional ballistic annihilation. We estimate exponents xi and gamma, which describe the long-time decay of the number of particles [n(t)similar to t(-xi)] and of their typical velocity [v(t)similar to t(-gamma)]. To a good accuracy our results confirm the scaling relation xi+gamma=1. In the two-dimensional case our results are in good agreement with those obtained from Boltzmann kinetic theory.
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页数：4
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