| 势阱贯穿中的负位相时间效应 |
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| 引用本文： | 李春芳,王奇,LI Chun-fang,WANG Qi.势阱贯穿中的负位相时间效应[J].上海大学学报(英文版),2000,4(3):210-213. |
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| 作者姓名： | 李春芳 王奇 LI Chun-fang WANG Qi |
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| 作者单位： | LI Chun fang，WANG Qi College of Sciences，Shanghai University，Shanghai 200436，China |
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| 基金项目： | Supported by the National Natural Science Foundation of China
!( 6 9870 0 9)，by the Science Foundation of Shanghai Municipal |
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| 摘 要： | 1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｔｈｅｐｒｏｂｌｅｍｏｆｈｏｗｌｏｎｇｉｔｔａｋｅｓｐａｒｔｉｃｌｅｓｔｏｔｕｎｎｅｌｔｈｒｏｕｇｈａｐｏｔｅｎｔｉａｌｂａｒｒｉｅｒｒｅｍａｉｎｓｃｏｎｔｒｏｖｅｒｓｉａｌ,ａｎｄａｖａｒｉｅｔｙｏｆｄｅｆｉｎｉｔｉｏｎｓｈａｖｅｂｅｅｎｐｒｏｐｏｓｅｄｆｏｒｔｈｅｔｕｎｎｅｌ ｉｎｇｔｉｍｅｃｏｎｃｅｐｔ1～ 3 ].Ａｎｉｍｐｏｒｔａｎｔｏｎｅａｍｏｎｇｔｈｏｓｅｉｓｔｈｅｐｈａｓｅｔｉｍｅ (ａｌｓｏｋｎｏｗｎａｓｔｈｅｇｒｏｕｐｄｅｌａｙｉｎｔｈｅｌｉ ｔｅｒａｔｕ…
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| 收稿时间： | 15 June 2000 |
Negative phase time effect in potential-well passing |
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| Chun-fang Li,Qi Wang.Negative phase time effect in potential-well passing[J].Journal of Shanghai University(English Edition),2000,4(3):210-213. |
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| Authors: | Chun-fang Li Qi Wang |
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| Institution: | College of Sciences, Shanghai University, Shanghai 200436, China |
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| Abstract: | 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. |
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| Keywords: | negative phase time negative lateral shift potential well quantum like dependence of phase on potential well thickness |
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