Ehrenfest’s Theorem revisited
Historically, Ehrenfest’s theorem (1927) is the first one which shows that classical physics can emerge from quantum physics as a kind of approximation. We recall the theorem in its original form, and we highlight its generalizations to the relativistic Dirac particle and to a particle with spin and...
| Published in: | Zagadnienia Filozoficzne w Nauce |
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| Main Author: | |
| Format: | Article |
| Language: | German |
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Copernicus Center Press
2019-07-01
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| Subjects: | |
| Online Access: | http://zfn.edu.pl/index.php/zfn/article/view/463 |
| Summary: | Historically, Ehrenfest’s theorem (1927) is the first one which shows that classical physics can emerge from quantum physics as a kind of approximation. We recall the theorem in its original form, and we highlight its generalizations to the relativistic Dirac particle and to a particle with spin and izospin. We argue that apparent classicality of the macroscopic world can probably be explained within the framework of standard quantum mechanics. |
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| ISSN: | 0867-8286 2451-0602 |