一维势垒贯穿时透射系数的计算与MATLAB分析  

Calculation of Transmission Coefficient for One Dimensional Potential Barrier Penetration and Their Analysis Based on MATLAB

作　　者：王焕友[1] 

机构地区：[1]湘南学院电子信息与电气工程学院,湖南郴州423043

出　　处：《科技创新导报》2016年第12期70-72,74,共4页Science and Technology Innovation Herald

基　　金：湖南省自然科学基金资助项目(13JJ3121);湖南省教育厅科学研究项目(15C1271)

摘　　要：该文先对粒子贯穿一维方势垒及一维一般势垒的透射系数进行理论推导,然后用Matlab程序对透射系数进行定量计算,不仅定性讨论了入射粒子能量与势垒宽度及高度对透射系数的影响,而且讨论了许多教材中透射系数的一种近似算法中势垒宽度对计算误差的影响。The paper firstly derives transmission coefficient for one-dimensional square barrier and one-dimensional general potential, and then uses Matlab to accurate transmission coefficients. This paper also discusses the influence of the energy of incident particles, the width and height of potential to the transmission coefficient. Then this paper discusses the influence of the width of potential to calculational error in a kind of approximate algorithm for calculating transmission coefficient in many textbooks.

关 键 词：势垒贯穿 透射系数 MATLAB 

分 类 号：O413[理学—理论物理]