Time Evolution of a Harmonic Chain with Fixed Boundary Conditions

作     者：LU Hong BAO Jing-Dong 卢宏;包景东

作者机构：Department of PhysicsBeijing Normal UniversityBeijing 100875 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2011年第28卷第4期

页      面：55-58页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10674016 and 0875013 the Specialized Research Foundation for the Doctoral Program of Higher Education under Grant No 20080027005 

主　　题：harmonic Fixed symmetry 

摘      要：We investigate the time evolution of a coupled harmonic-oscillator chain under two boundary conditions:two ends fixed and one end *** dynamics of the coupled chain and the steady variances of the coordinates are explicitly analyzed by the entire Hamiltonian using a diagonalization *** result shows the desirable symmetry for the case with two ends *** particular,a Langevin simulation technique is proposed to sample the harmonic chain across the entire equilibrium distribution.