Collective behavior of optically trapped neutral atoms

Details Collective behavior of optically trapped neutral atoms Collective behavior of optically trapped neutral atoms

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvl..64..408w&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 64, Jan. 22, 1990, p. 408-411. Research supported by the U.S. Navy and NSF.

Physics

Optics

180

Laser Beams, Neutral Atoms, Physical Optics, Trapped Particles, Interatomic Forces, Size Distribution, Spatial Distribution

Scientific paper

Experiments that show collective behavior in clouds of optically trapped neutral atoms are described. This collective behavior is demonstrated in a variety of observed spatial distributions with abrupt bistable transitions between them. These distributions include stable rings of atoms around a small core and clumps of atoms rotating about the core. The size of the cloud grows rapidly as more atoms are loaded into it, implying a strong long-range repulsive force between the atoms. It is shown that a force arising from radiation trapping can explain much of this behavior.

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