dorsal/arxiv
View SchemaTesting the stability of fundamental constants with the 199Hg+ single-ion optical clock
| Authors | S. Bize, S. A. Diddams, U. Tanaka, C. E. Tanner, W. H. Oskay, R. E. Drullinger, T. E. Parker, T. P. Heavner, S. R. Jefferts, L. Hollberg, W. M. Itano, D. J. Wineland, J. C. Bergquist |
|---|---|
| Categories | |
| ArXiv ID | physics/0212109 |
| URL | https://arxiv.org/abs/physics/0212109 |
| DOI | 10.1103/PhysRevLett.90.150802 |
Abstract
Over a two-year duration, we have compared the frequency of the 199Hg+ 5d106s 2S 1/2 (F=0)<-> 5d9 6s2 2D 5/2 (F=2) electric-quadrupole transition at 282 nm with the frequency of the ground-state hyperfine splitting in neutral 133Cs. These measurements show that any fractional time variation of the ratio nu(Cs)/nu(Hg) between the two frequencies is smaller than +/- 7 10^-15 / yr (1 sigma uncertainty). According to recent atomic structure calculations, this sets an upper limit to a possible fractional time variation of g(Cs) m_e / m_p alpha^6.0 at the same level.
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"abstract": "Over a two-year duration, we have compared the frequency of the 199Hg+ 5d106s\n2S 1/2 (F=0)\u003c-\u003e 5d9 6s2 2D 5/2 (F=2) electric-quadrupole transition at 282 nm\nwith the frequency of the ground-state hyperfine splitting in neutral 133Cs.\nThese measurements show that any fractional time variation of the ratio\nnu(Cs)/nu(Hg) between the two frequencies is smaller than +/- 7 10^-15 / yr (1\nsigma uncertainty). According to recent atomic structure calculations, this\nsets an upper limit to a possible fractional time variation of g(Cs) m_e / m_p\nalpha^6.0 at the same level.",
"arxiv_id": "physics/0212109",
"authors": [
"S. Bize",
"S. A. Diddams",
"U. Tanaka",
"C. E. Tanner",
"W. H. Oskay",
"R. E. Drullinger",
"T. E. Parker",
"T. P. Heavner",
"S. R. Jefferts",
"L. Hollberg",
"W. M. Itano",
"D. J. Wineland",
"J. C. Bergquist"
],
"categories": [
"physics.atom-ph",
"physics.gen-ph"
],
"doi": "10.1103/PhysRevLett.90.150802",
"title": "Testing the stability of fundamental constants with the 199Hg+ single-ion optical clock",
"url": "https://arxiv.org/abs/physics/0212109"
},
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