Discrete Integration Theory in Field Theory
摘要:
将差分视作一个几何变量,通过离散差分变分原理,得到场论中的Noether等式的离散形式.给出场论中的离散Noether定理.得到场论中存在离散的Noether守恒量的条件.引入非线性Schr?dinger方程的算例说明理论的应用.
The discrete analogue of Noether-type identities in field theory is investigated by means of difference discrete variational principle with the difference being regarded as an entire geometric object.The discrete analogue of Noether theorems is obtained.The conditions of existing the discrete analogue of Noether conservation law in field theory are proposed.The discretization for the nonlinear Schrodinger equation is presented to illustrate the results.
作者:
刘长欣 夏丽莉
机构地区:
河南教育学院物理与电子工程学院
出处:
《betway官方app 学报:自然科学版》 CAS 北大核心 2016年第2期53-56,65,共5页
基金:
国家自然科学基金(11502071) 河南省自然科学基金(132300410051) 河南省教育厅基础研究项目(13A140224)
关键词:
离散Noether定理 变分积分子 场论
discrete Noether theorem variational integrators field theory
分类号:
O316 [理学—一般力学与力学基础]