Trapping ultracold atoms in a time-averaged adiabatic potential
Physical Review A - Atomic, Molecular, and Optical Physics 81:3 (2010)
Abstract:
We report an experimental realization of ultracold atoms confined in a time-averaged, adiabatic potential (TAAP). This trapping technique involves using a slowly oscillating (鈭糼Hz) bias field to time-average the instantaneous potential given by dressing a bare magnetic potential with a high-frequency (~MHz) magnetic field. The resultant potentials provide a convenient route to a variety of trapping geometries with tunable parameters. We demonstrate the TAAP trap in a standard time-averaged orbiting potential trap with additional Helmholtz coils for the introduction of the radio frequency dressing field. We have evaporatively cooled 5脳104 atoms of Rb87 to quantum degeneracy and observed condensate lifetimes of longer than 3 s. 漏 2010 The American Physical Society.Observation of vortex nucleation in a rotating two-dimensional lattice of Bose-Einstein condensates
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Observation of Vortex Nucleation in a Rotating Two-Dimensional Lattice of Bose-Einstein Condensates
PHYSICAL REVIEW LETTERS 104:5 (2010) ARTN 050404
Ultracold atoms in an optical lattice with dynamically variable periodicity
PHYSICAL REVIEW A 82:2 (2010) ARTN 021604
Trapping Ultracold Atoms in a Time-Averaged Adiabatic Potential
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