Negative Phase Time Effectin Potential-Well Passing

作     者：Chun-fang Li Qi Wang 

作者机构：College of Sciences Shanghai University Shanghai China 

出 版 物：《Advances in Manufacturing》 (先进制造进展（英文版）)

年 卷 期：2000年第4卷第3期

页      面：210-213页

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China!( 6 9870 0 9) by the Science Foundation of Shanghai Municipal 

主　　题：negative phase time negative lateral shift potential well quantum like dependence of phase on potential well thickness 

摘      要：The properties of phase time taken for particles to pass through a quantum potential well are investigated. It is found in a 1 dimensional quantum mechanical problem that the phase time is negative when the incident energy and the thickness of potential well satisfy certain conditions. Similar results are also found in a 2 dimensional fully relativistic optical analog. It is shown that the expression of the la teral shift of transmitted optical waves is similar to that of the phase time in the 1 dimensional quantum mechanical problem. The phase time in the 2 dimensional optical problem is also shown to be negative under certain conditions.