dorsal/arxiv
View SchemaOptical atomic coherence at the one-second time scale
| Authors | Martin M. Boyd, Tanya Zelevinsky, Andrew D. Ludlow, Seth M. Foreman, Sebastian Blatt, Tetsuya Ido, Jun Ye |
|---|---|
| Categories | |
| ArXiv ID | physics/0610096 |
| URL | https://arxiv.org/abs/physics/0610096 |
| DOI | 10.1126/science.1133732 |
| Journal | Science 314, 1430 (2006) |
Abstract
Highest resolution laser spectroscopy has generally been limited to single trapped ion systems due to rapid decoherence which plagues neutral atom ensembles. Here, precision spectroscopy of ultracold neutral atoms confined in a trapping potential shows superior optical coherence without any deleterious effects from motional degrees of freedom, revealing optical resonance linewidths at the hertz level with an excellent signal to noise ratio. The resonance quality factor of 2.4 x 10^{14} is the highest ever recovered in any form of coherent spectroscopy. The spectral resolution permits direct observation of the breaking of nuclear spin degeneracy for the 1S0 and 3P0 optical clock states of 87Sr under a small magnetic bias field. This optical NMR-like approach allows an accurate measurement of the differential Lande g-factor between the two states. The optical atomic coherence demonstrated for collective excitation of a large number of atoms will have a strong impact on quantum measurement and precision frequency metrology.
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"abstract": "Highest resolution laser spectroscopy has generally been limited to single\ntrapped ion systems due to rapid decoherence which plagues neutral atom\nensembles. Here, precision spectroscopy of ultracold neutral atoms confined in\na trapping potential shows superior optical coherence without any deleterious\neffects from motional degrees of freedom, revealing optical resonance\nlinewidths at the hertz level with an excellent signal to noise ratio. The\nresonance quality factor of 2.4 x 10^{14} is the highest ever recovered in any\nform of coherent spectroscopy. The spectral resolution permits direct\nobservation of the breaking of nuclear spin degeneracy for the 1S0 and 3P0\noptical clock states of 87Sr under a small magnetic bias field. This optical\nNMR-like approach allows an accurate measurement of the differential Lande\ng-factor between the two states. The optical atomic coherence demonstrated for\ncollective excitation of a large number of atoms will have a strong impact on\nquantum measurement and precision frequency metrology.",
"arxiv_id": "physics/0610096",
"authors": [
"Martin M. Boyd",
"Tanya Zelevinsky",
"Andrew D. Ludlow",
"Seth M. Foreman",
"Sebastian Blatt",
"Tetsuya Ido",
"Jun Ye"
],
"categories": [
"physics.atom-ph",
"physics.optics",
"quant-ph"
],
"doi": "10.1126/science.1133732",
"journal_ref": "Science 314, 1430 (2006)",
"title": "Optical atomic coherence at the one-second time scale",
"url": "https://arxiv.org/abs/physics/0610096"
},
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