用WKB方法讨论透射系数和反射系数  

Discussion of the penetration and reflection coefficient with W.K.B method

作　　者：李根小[1] 霍海燕 

机构地区：[1]内蒙古农业大学理学院 [2]内蒙古民族高等专科学校

出　　处：《内蒙古石油化工》2007年第1期35-37,共3页Inner Mongolia Petrochemical Industry

摘　　要：本文用WKB近似方法讨论了势垒贯穿问题系数T和其透射反射系数R之和恒等为1,即满足恒等式T+R=1,并进一步得出这一结论不仅适用于一般势垒贯穿而且在方势垒贯穿中也成立,最后讨论了势垒贯穿的几种极限情况,例如,h→0(即经典情况),势垒高度v→∞、v→0,势垒宽度a→∞、a→0,等几种特殊情况下的T及R的取值问题。The paper discusses the problems about barrier penetration with W. K. B approximate method ,then proves that the sum of the penetration coefficient and reflection coefficient always make 1 in the course of general barrier penetration ,it means T＋R= 1 is perpetual. On this base ,we testified that the law is proper not only in general barrier penetration but also in square barrier penetration. Finally talk over some limiting case of barrier penetration, such as when h tend to zero ,when V0 tend to infinition and zero and when a tend to infinition and zero ,and analyses T and R in this special condition .

关 键 词：准经典近似 一般势垒贯穿 透射系数 反射系数 方势垒贯穿 

分 类 号：O413.1[理学—理论物理]