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On the sudden expansion of an infinite square well

 

作者: J. G. Cordes,   D. Kiang,   H. Nakajima,  

 

期刊: American Journal of Physics  （AIP Available online 1984）
卷期: Volume 52, issue 2  

页码: 155-158

 

ISSN:0002-9505

 

年代: 1984

 

DOI:10.1119/1.13727

 

出版商: American Association of Physics Teachers

 

关键词: square−well potential;quantum mechanics;eigenstates;sudden approximation;probability

 

数据来源: AIP

 

摘要:

It is shown that most initial states, upon sudden expansion of the wall of an infinite square well, lead to an infinite dispersion in the energy. Circumstances under which ΔEremains finite and constant are discussed. The situation with respect to a macroscopic system is examined.

 

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