教師資料查詢 | 類別: 期刊論文 | 教師: 何俊麟 HO, CHOON-LIN (瀏覽個人網頁)

標題:Quantum metastability in a class of moving potentials
學年92
學期2
出版(發表)日期2004/04/01
作品名稱Quantum metastability in a class of moving potentials
作品名稱(其他語言)
著者Lee, Chung-Chieh; Ho, Choon-Lin
單位淡江大學物理學系
出版者College Park: American Physical Society
著錄名稱、卷期、頁數Physical Review A (Atomic, Molecular, and Optical Physics) 65(2), 022111(8pages)
摘要In this paper we consider quantum metastability in a class of moving potentials introduced by Berry and Klein. This class of potential has height and width scaled in a specific way so that it can be transformed into a stationary one. While deriving the nondecay probability of the system, we demonstrate that the appropriate technique to use is the less well known method of scattering states. This method is illustrated through two examples, namely, a moving δ-function potential and a moving barrier potential. For expanding potentials, one finds that a small but finite nondecay probability persists at large times. Generalization to scaling potentials of arbitrary shape is briefly outlined.
關鍵字Mathematical transformations;Potential energy;Probability;Scattering;Moving potential;Quantum metastability;Schrodinger equation;Quantum theory
語言英文
ISSN1050-2947
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
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