Action for classical, quantum, closed and open systems
Quantum Physics
2024-05-30 v2 High Energy Physics - Theory
Abstract
It is well known that the action functional can be used to define classical, quantum, closed, and open dynamics in a generalization of the variational principle and in the path integral formalism in classical and quantum dynamics, respectively. These schemes are based on an unusual feature, a formal redoubling of the degrees of freedom. Several arguments to motivate the redoubling are put forward in classical and quantum mechanics to demonstrate that such a formalism is natural.
Cite
@article{arxiv.2307.12320,
title = {Action for classical, quantum, closed and open systems},
author = {Janos Polonyi},
journal= {arXiv preprint arXiv:2307.12320},
year = {2024}
}
Comments
Final version to appear in Annals of Physics