Polarization-gradient cooling in a strong doughnut-mode dipole potential

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Kuppens, S.; Rauner, M.; Schiffer, M.; Sengstock, K.; Ertmer, W. et al.: Polarization-gradient cooling in a strong doughnut-mode dipole potential. In: Physical Review A 58 (1998), Nr. 4, S. 3068-3079. DOI: https://doi.org/10.1103/PhysRevA.58.3068

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Abstract: 
We present experimental and theoretical studies of polarization-gradient cooling of metastable neon atoms confined to the dark center of a [Formula Presented] (doughnut) mode. A slow beam of neon atoms is guided and focused inside a blue-detuned and focused doughnut-mode laser beam to a spot size below 10 μm. The transverse motion inside this doughnut mode is cooled by means of two-dimensional optical molasses. We observed non-Gaussian two-component velocity distributions of which the cold component has a width of down to three recoil velocities. These results are found to be in qualitative agreement with a quantum Monte Carlo simulation of cooling in one dimension in the presence of an external light-shift potential. For the simulation we apply the recently developed technique of quantum-state diffusion with adaptive noise. © 1998 The American Physical Society.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: article
Publishing status: publishedVersion
Issue Date: 1998
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
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1 image of flag of Germany Germany 40 74.07%
2 image of flag of United States United States 3 5.56%
3 image of flag of China China 3 5.56%
4 image of flag of France France 2 3.70%
5 image of flag of Uruguay Uruguay 1 1.85%
6 image of flag of Singapore Singapore 1 1.85%
7 image of flag of India India 1 1.85%
8 image of flag of United Kingdom United Kingdom 1 1.85%
9 image of flag of Spain Spain 1 1.85%
10 image of flag of Czech Republic Czech Republic 1 1.85%

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