Atomic micromotion and geometric forces in a triaxial magnetic trap
arXiv:physics/0005081 · doi:10.1103/PhysRevLett.85.4454
Abstract
Non-adiabatic motion of Bose-Einstein condensates of rubidium atoms arising from the dynamical nature of a time-orbiting-potential (TOP) trap was observed experimentally. The orbital micromotion of the condensate in velocity space at the frequency of the rotating bias field of the TOP was detected by a time-of-flight method. A dependence of the equilibrium position of the atoms on the sense of rotation of the bias field was observed. We have compared our experimental findings with numerical simulations. The nonadiabatic following of the atomic spin in the trap rotating magnetic field produces geometric forces acting on the trapped atoms.
4 pages, 4 figures
References in corpus (5)
- Output coupling of a Bose-Einstein condensate formed in a TOP trap
- Bose-Einstein condensation of rubidium atoms in a triaxial TOP-trap
- Bose-Einstein condensation in a rotating anisotropic TOP trap
- Nonadiabatic Dynamics of Atoms in Nonuniform Magnetic Fields
- Dynamic Stability of The Time-averaged Orbiting Potential Trap: Exact Classical Analysis
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