dorsal/arxiv
View SchemaComment on "Evolution of a Quasi-Stationary State"
| Authors | Duane A. Dicus, Wayne W. Repko, Roy F. Schwitters, Todd M. Tinsley |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0109053 |
| URL | https://arxiv.org/abs/quant-ph/0109053 |
| DOI | 10.1103/PhysRevA.65.032116 |
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.
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"abstract": "Approximately forty years ago it was realized that the time development of\ndecaying systems might not be precisely exponential. Rolf Winter (Phys. Rev.\n{\\bf 123}, 1503 (1961)) analyzed the simplest nontrivial system - a particle\ntunneling out of a well formed by a wall and a delta-function. He calculated\nthe probability current just outside the well and found irregular oscillations\non a short time scale followed by an exponential decrease followed by more\noscillations and finally by a decrease as a power of the time. We have\nreanalyzed this system, concentrating on the survival probability of the\nparticle in the well rather than the probability current, and find a different\nshort time behavior.",
"arxiv_id": "quant-ph/0109053",
"authors": [
"Duane A. Dicus",
"Wayne W. Repko",
"Roy F. Schwitters",
"Todd M. Tinsley"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.65.032116",
"title": "Comment on \"Evolution of a Quasi-Stationary State\"",
"url": "https://arxiv.org/abs/quant-ph/0109053"
},
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