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 (∼kHz) 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 5×104 atoms of Rb87 to quantum degeneracy and observed condensate lifetimes of longer than 3 s. © 2010 The American Physical Society.Observation of vortex nucleation in a rotating two-dimensional lattice of Bose-Einstein condensates
(2010)
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
(2009)