Long Range Interactions Between Neutral Atoms

In a magneto-otpical trap (MOT) where atoms can be cooled and trapped using quasi-resonant laser light, the effect of rescattered light limits the spatial density of the atoms. Here we draw an analogy between the forces associated to this multiple scattering and a Coulomb type long range interaction...

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Bibliographic Details
Main Authors: Gattobigio, G L, Michaud, F, Labeyrie, G, Pohl, T, Kaiser, R
Format: Conference Proceeding
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATOMS
BIFURCATION
CHARGED PARTICLES
INTERACTION RANGE
LASERS
MAGNETO-OPTICAL EFFECTS
MULTIPLE SCATTERING
NONLINEAR PROBLEMS
PLASMA
PLASMA INSTABILITY
TRAPPING
TRAPS
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Summary:In a magneto-otpical trap (MOT) where atoms can be cooled and trapped using quasi-resonant laser light, the effect of rescattered light limits the spatial density of the atoms. Here we draw an analogy between the forces associated to this multiple scattering and a Coulomb type long range interaction. A MOT in the density limited regime can thus be interpreted as a non neutral plasma with weakly charged particles. For very large samples, non linear terms in the cooling and trapping forces can lead to self sustained instabilities via a supercritical Hopf bifurcation.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2387926