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Classical limit of quantum mechanics (electron in a magnetic field)

 

作者: E. G. Peter Rowe,  

 

期刊: American Journal of Physics  (AIP Available online 1991)
卷期: Volume 59, issue 12  

页码: 1111-1117

 

ISSN:0002-9505

 

年代: 1991

 

DOI:10.1119/1.16622

 

出版商: American Association of Physics Teachers

 

关键词: QUANTUM MECHANICS;ELECTRONS;MAGNETIC FIELDS;QUANTUM OPERATORS;BOUNDARY CONDITIONS;BLACKBODY RADIATION;TWO−DIMENSIONAL CALCULATIONS

 

数据来源: AIP

 

摘要:

Different classical limits of quantum mechanics are discussed in the setting of a simple example, the two‐dimensional motion of a spinless electron in a uniform magnetic field. Both the time‐independent energy eigenstates and the time‐dependent states developing from initial localized states are exactly solvable. In the first example, an ℏ→0 limit with fixed energy leads to a simple ensemble of classical orbits. In the second, ℏ→0 with fixed initial mean position and momentum leads to a unique classical orbit.

 

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