dorsal/arxiv
View SchemaSpontaneous emission and lifetime modification caused by an intense electromagnetic field
| Authors | P. Facchi, S. Pascazio |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9909043 |
| URL | https://arxiv.org/abs/quant-ph/9909043 |
| DOI | 10.1103/PhysRevA.62.023804 |
| Journal | Phys. Rev. A 62, 023804 (2000). |
Abstract
We study the temporal evolution of a three-level system (such as an atom or a molecule), initially prepared in an excited state, bathed in a laser field tuned at the transition frequency of the other level. The features of the spontaneous emission are investigated and the lifetime of the initial state is evaluated: a Fermi "golden rule" still applies, but the on-shell matrix elements depend on the intensity of the laser field. In general, the lifetime is a decreasing function of the laser intensity. The phenomenon we discuss can be viewed as an "inverse" quantum Zeno effect and can be analyzed in terms of dressed states.
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"abstract": "We study the temporal evolution of a three-level system (such as an atom or a\nmolecule), initially prepared in an excited state, bathed in a laser field\ntuned at the transition frequency of the other level. The features of the\nspontaneous emission are investigated and the lifetime of the initial state is\nevaluated: a Fermi \"golden rule\" still applies, but the on-shell matrix\nelements depend on the intensity of the laser field. In general, the lifetime\nis a decreasing function of the laser intensity. The phenomenon we discuss can\nbe viewed as an \"inverse\" quantum Zeno effect and can be analyzed in terms of\ndressed states.",
"arxiv_id": "quant-ph/9909043",
"authors": [
"P. Facchi",
"S. Pascazio"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.62.023804",
"journal_ref": "Phys. Rev. A 62, 023804 (2000).",
"title": "Spontaneous emission and lifetime modification caused by an intense electromagnetic field",
"url": "https://arxiv.org/abs/quant-ph/9909043"
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