| Автор | A. Banerjee |
| Автор | D. Das |
| Автор | V. Natarajan |
| Дата выпуска | 2004-01-01 |
| dc.description | We report values for the D<sub>1</sub>-line frequencies with 0.13 ppb uncertainty in the alkali atoms <sup>39</sup>K, <sup>85</sup>Rb, and <sup>87</sup>Rb. The frequencies are measured using an evacuated ring-cavity resonator whose length is calibrated against a reference laser locked to the D<sub>2</sub> line in <sup>87</sup>Rb. The measured frequencies, along with sub-ppb measurement of the atomic masses reported previously, form important links in a possible high-precision determination of the fine-structure constant using the photon-recoil shift measured in an atom interferometer. We also obtain, with improved precision, the hyperfine-coupling constants in the P<sub>1/2</sub> state of these atoms, and the fine-structure interval in the 5P state of Rb. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2004 EDP Sciences |
| Название | Absolute frequency measurements of the D<sub>1</sub> lines in <sup>39</sup>K, <sup>85</sup>Rb, and <sup>87</sup>Rb with ∼ 0.1 ppb uncertainty |
| Тип | lett |
| DOI | 10.1209/epl/i2003-10069-3 |
| Electronic ISSN | 1286-4854 |
| Print ISSN | 0295-5075 |
| Журнал | EPL (Europhysics Letters) |
| Том | 65 |
| Первая страница | 172 |
| Последняя страница | 178 |
| Аффилиация | A. Banerjee; Department of Physics, Indian Institute of Science - Bangalore 560 012, India |
| Аффилиация | D. Das; Department of Physics, Indian Institute of Science - Bangalore 560 012, India |
| Аффилиация | V. Natarajan; Department of Physics, Indian Institute of Science - Bangalore 560 012, India |
| Выпуск | 2 |
