dorsal/arxiv
View SchemaAtomic time-of-arrival measurements with a laser of finite beam width
| Authors | J. A. Damborenea, I. L. Egusquiza, G. C. Hegerfeldt, J. G. Muga |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0302201 |
| URL | https://arxiv.org/abs/quant-ph/0302201 |
| DOI | 10.1088/0953-4075/36/12/320 |
Abstract
A natural approach to measure the time of arrival of an atom at a spatial region is to illuminate this region with a laser and detect the first fluorescence photons produced by the excitation of the atom and subsequent decay. We investigate the actual physical content of such a measurement in terms of atomic dynamical variables, taking into account the finite width of the laser beam. Different operation regimes are identified, in particular the ones in which the quantum current density may be obtained.
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"abstract": "A natural approach to measure the time of arrival of an atom at a spatial\nregion is to illuminate this region with a laser and detect the first\nfluorescence photons produced by the excitation of the atom and subsequent\ndecay. We investigate the actual physical content of such a measurement in\nterms of atomic dynamical variables, taking into account the finite width of\nthe laser beam. Different operation regimes are identified, in particular the\nones in which the quantum current density may be obtained.",
"arxiv_id": "quant-ph/0302201",
"authors": [
"J. A. Damborenea",
"I. L. Egusquiza",
"G. C. Hegerfeldt",
"J. G. Muga"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0953-4075/36/12/320",
"title": "Atomic time-of-arrival measurements with a laser of finite beam width",
"url": "https://arxiv.org/abs/quant-ph/0302201"
},
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