Time-dependent Perturbation Theory in Quantum Mechanics
Quantum Physics
2007-05-23 v1
Abstract
After revealing difficulties of the standard time-dependent perturbation theory in quantum mechanics mainly from the viewpoint of practical calculation, we propose a new quasi-canonical perturbation theory. In the new theory, the dynamics of physical observables, instead of that of coefficients of wave-function expansion, is formulated so that the gauge-invariance and correspondence principles are observed naturally.
Cite
@article{arxiv.quant-ph/9911064,
title = {Time-dependent Perturbation Theory in Quantum Mechanics},
author = {C. Y. Chen},
journal= {arXiv preprint arXiv:quant-ph/9911064},
year = {2007}
}
Comments
13 pages, No figures