Ehrenfest’s Theorem revisited

• Authors: Henryk Stanisław Arodź
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

Ehrenfest's theorem; wave packets; quantum vs. classical world

PL

Ehrenfest’s theorem; wave packets; quantum vs. classical world

• Publisher: Copernicus Center Press
• Journal: Zagadnienia Filozoficzne w Nauce
• Year: 2019
• Issue: 66
• Pages: 73-94

Dates

published

2019-07-30

Contributors

author

Henryk Stanisław Arodź