|
| related topics |
| {time, wave, function} |
| {cos, sin, state} |
| {particle, mechanics, theory} |
| {wave, scattering, interference} |
| {measurement, state, measurements} |
| {level, atom, field} |
|
Comment on "Evolution of a Quasi-Stationary State"
Duane A. Dicus, Wayne W. Repko, Roy F. Schwitters, Todd M. Tinsley
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.
- oai_identifier:
- oai:arXiv.org:quant-ph/0109053
- categories:
- quant-ph
- comments:
- 8 pages, 6 figures, RevTex4
- arxiv_id:
- quant-ph/0109053
- created:
- 2001-09-12
Full article ▸
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