Quantum metastability in a class of moving potentials

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/27752

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题名:	Quantum metastability in a class of moving potentials
作者:	Lee, Chung-Chieh;Ho, Choon-Lin
贡献者:	淡江大學物理學系
关键词:	Mathematical transformations;Potential energy;Probability;Scattering;Moving potential;Quantum metastability;Schrodinger equation;Quantum theory
日期:	2004-04
上传时间:	2013-07-09 15:07:54 (UTC+8)
出版者:	College Park: American Physical Society
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.
關聯:	Physical Review A (Atomic, Molecular, and Optical Physics) 65(2), 022111(8pages)
DOI:	10.1103/PhysRevA.65.022111
显示于类别:	[物理學系暨研究所] 期刊論文

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