dorsal/arxiv
View SchemaHyperfine Spectroscopy of Optically Trapped Atoms
| Authors | A. Kaplan, M. F. Andersen, T. Grünzweig, N. Davidson |
|---|---|
| Categories | |
| ArXiv ID | physics/0409146 |
| URL | https://arxiv.org/abs/physics/0409146 |
| DOI | 10.1088/1464-4266/7/8/R01 |
Abstract
We perform spectroscopy on the hyperfine splitting of $^{85}$Rb atoms trapped in far-off-resonance optical traps. The existence of a spatially dependent shift in the energy levels is shown to induce an inherent dephasing effect, which causes a broadening of the spectroscopic line and hence an inhomogeneous loss of atomic coherence at a much faster rate than the homogeneous one caused by spontaneous photon scattering. We present here a number of approaches for reducing this inhomogeneous broadening, based on trap geometry, additional laser fields, and novel microwave pulse sequences. We then show how hyperfine spectroscopy can be used to study quantum dynamics of optically trapped atoms.
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"abstract": "We perform spectroscopy on the hyperfine splitting of $^{85}$Rb atoms trapped\nin far-off-resonance optical traps. The existence of a spatially dependent\nshift in the energy levels is shown to induce an inherent dephasing effect,\nwhich causes a broadening of the spectroscopic line and hence an inhomogeneous\nloss of atomic coherence at a much faster rate than the homogeneous one caused\nby spontaneous photon scattering. We present here a number of approaches for\nreducing this inhomogeneous broadening, based on trap geometry, additional\nlaser fields, and novel microwave pulse sequences. We then show how hyperfine\nspectroscopy can be used to study quantum dynamics of optically trapped atoms.",
"arxiv_id": "physics/0409146",
"authors": [
"A. Kaplan",
"M. F. Andersen",
"T. Gr\u00fcnzweig",
"N. Davidson"
],
"categories": [
"physics.atom-ph",
"cond-mat.soft",
"nlin.CD",
"quant-ph"
],
"doi": "10.1088/1464-4266/7/8/R01",
"title": "Hyperfine Spectroscopy of Optically Trapped Atoms",
"url": "https://arxiv.org/abs/physics/0409146"
},
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