Comment on "Evolution of a Quasi-Stationary State"
Quantum Physics
2013-05-29 v1
Abstract
Approximately forty years ago it was realized that the time development of decaying systems might not be precisely exponential. Rolf Winter (Phys. Rev. {\bf 123}, 1503 (1961)) analyzed the simplest nontrivial system - a particle tunneling out of a well formed by a wall and a delta-function. He calculated the probability current just outside the well and found irregular oscillations on a short time scale followed by an exponential decrease followed by more oscillations and finally by a decrease as a power of the time. We have reanalyzed this system, concentrating on the survival probability of the particle in the well rather than the probability current, and find a different short time behavior.
Keywords
Cite
@article{arxiv.quant-ph/0109053,
title = {Comment on "Evolution of a Quasi-Stationary State"},
author = {Duane A. Dicus and Wayne W. Repko and Roy F. Schwitters and Todd M. Tinsley},
journal= {arXiv preprint arXiv:quant-ph/0109053},
year = {2013}
}
Comments
8 pages, 6 figures, RevTex4