dorsal/arxiv
View SchemaPuzzle of the constancy of fundamental constants
| Authors | D. A. Varshalovich, A. Y. Potekhin, A. V. Ivanchik |
|---|---|
| Categories | |
| ArXiv ID | physics/0004068 |
| URL | https://arxiv.org/abs/physics/0004068 |
| Journal | Comments on Modern Physics 2 (2001) D223-D232 |
Abstract
We discuss experiments and observations aimed at testing the possible space-time variability of fundamental physical constants, predicted by the modern theory. Specifically, we consider two of the dimensionless physical parameters which are important for atomic and molecular physics: the fine-structure constant and the electron-to-proton mass ratio. We review the current status of such experiments and critically analyze recent claims of a detection of the variability of the fine-structure constant on the cosmological time scale. We stress that such a detection remains to be checked by future experiments and observations. The tightest of the firmly established upper limits read that the considered constants could not vary by more than 0.015% on the scale of 10 Gigayears.
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"abstract": "We discuss experiments and observations aimed at testing the possible\nspace-time variability of fundamental physical constants, predicted by the\nmodern theory. Specifically, we consider two of the dimensionless physical\nparameters which are important for atomic and molecular physics: the\nfine-structure constant and the electron-to-proton mass ratio. We review the\ncurrent status of such experiments and critically analyze recent claims of a\ndetection of the variability of the fine-structure constant on the cosmological\ntime scale. We stress that such a detection remains to be checked by future\nexperiments and observations. The tightest of the firmly established upper\nlimits read that the considered constants could not vary by more than 0.015% on\nthe scale of 10 Gigayears.",
"arxiv_id": "physics/0004068",
"authors": [
"D. A. Varshalovich",
"A. Y. Potekhin",
"A. V. Ivanchik"
],
"categories": [
"physics.atom-ph",
"astro-ph",
"physics.gen-ph"
],
"journal_ref": "Comments on Modern Physics 2 (2001) D223-D232",
"title": "Puzzle of the constancy of fundamental constants",
"url": "https://arxiv.org/abs/physics/0004068"
},
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