| 一类生灭过程及其在核天体物理计算中的应用 |
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| 引用本文： | 吴开谡,张妍,刘晓晶,薛雅萍. 一类生灭过程及其在核天体物理计算中的应用[J]. 计算物理, 2006, 23(6): 631-636 |
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| 作者姓名： | 吴开谡 张妍 刘晓晶 薛雅萍 |
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| 作者单位： | 北京化工大学理学院数学系,北京,100029;北京化工大学理学院数学系,北京,100029;北京化工大学理学院数学系,北京,100029;北京化工大学理学院数学系,北京,100029 |
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| 基金项目： | 国家自然科学基金;北京化工大学校科研和教改项目 |
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| 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.
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| 关 键 词： | 生灭过程 矩阵分解 核天体物理 重元素丰度 |
| 文章编号： | 1001-246X（2006）06-0631-06 |
| 收稿时间： | 2005-09-09 |
| 修稿时间： | 2005-09-09 |
A Sort of Birth-Death Process and Application in Nuclear Astrophysics |
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| WU Kai-su,ZHANG Yan,LIU Xiao-jing,XUE Ya-ping. A Sort of Birth-Death Process and Application in Nuclear Astrophysics[J]. Chinese Journal of Computational Physics, 2006, 23(6): 631-636 |
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| Authors: | WU Kai-su ZHANG Yan LIU Xiao-jing XUE Ya-ping |
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| Affiliation: | Department of Mathematics, School of Science, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | 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. |
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| Keywords: | birth-death process matrix decomposition nuclear astrophysics heavy element abundance |
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