摘要
研究一类生灭过程,利用矩阵分解技巧求出了生灭过程微分方程的解,并将之应用于核天体物理中太阳系慢中子俘获过程重元丰度计算问题研究,计算结果与天文观测值一致.
A sort of birth-death process is investigated. We calculate eigenvalue, eigenvectors of the main matrix for the birth-death process differential equation and get a similar decomposition of the main matrix. Using the technique of matrix decomposition, we obtain the solution of the birth-death process differential equation and study the heavy element abundance of the slow neutron capture process（s-process） in the solar system. A full calculation of heavy element abundance of s-process in solar system is carried out. The result agrees well with astrophysical measurement.
出处
《计算物理》
CSCD
北大核心
2006年第6期631-636,共6页
Chinese Journal of Computational Physics
基金
国家自然科学基金专项基金(10447141)
北京化工大学青年科学基金资助项目
关键词
生灭过程
矩阵分解
核天体物理
重元素丰度
birth-death process
matrix decomposition
nuclear astrophysics
heavy element abundance
