Trapping Ultracold Atoms in a Time-Averaged Adiabatic Potential

Abstract

We report the first experimental realization of ultracold atoms confined in a time-averaged, adiabatic potential (TAAP). This novel trapping technique involves using a slowly oscillating ($\sim$ kHz) bias field to time-average the instantaneous potential given by dressing a bare magnetic potential with a high frequency ($\sim$ 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 $\times 10^4$ atoms of ${}^{87}$Rb to quantum degeneracy and observed condensate lifetimes of over \unit[3]{s}.-

4 pages, 6 figures

References in corpus (31)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Vortex formation in a stirred Bose-Einstein condensate
• A High Phase-Space-Density Gas of Polar Molecules
• Anderson localization of a non-interacting Bose-Einstein condensate
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Matter-wave interferometry in a double well on an atom chip
• Experimental demonstration of painting arbitrary and dynamic potentials for Bose-Einstein condensates
• Quantum Phases of Vortices in Rotating Bose-Einstein Condensates
• Rapidly Rotating Bose-Einstein Condensates in and near the Lowest Landau Level
• An Atom Michelson Interferometer on a Chip Using a Bose-Einstein Condensate
• Long Phase Coherence Time and Number Squeezing of two Bose-Einstein Condensates on an Atom Chip
• Driving Bose-Einstein condensate vorticity with a rotating normal cloud
• Bose-Einstein condensation in a circular waveguide
• Vortex nucleation in Bose-Einstein condensates in an oblate, purely magnetic potential
• Long-Term Stability of an Area-Reversible Atom-Interferometer Sagnac Gyroscope
• Observation of Long-lived Vortex Aggregates in Rapidly Rotating Bose-Einstein Condensates
• Radio-frequency dressed state potentials for neutral atoms
• Vortex states of rapidly rotating dilute Bose-Einstein condensates
• Adiabatic radio frequency potentials for the coherent manipulation of matter waves
• A large magnetic storage ring for Bose-Einstein condensates
• Time-Averaged Adiabatic Potentials: Versatile traps and waveguides for ultracold quantum gases
• Ultracold atoms confined in rf-induced two-dimensional trapping potentials
• Optimizing number squeezing when splitting a mesoscopic condensate
• Ultracold atoms in radio-frequency-dressed potentials beyond the rotating wave approximation
• Hidden vortices in a Bose-Einstein condensate in a rotating double-well potential
• Manipulation of ultracold atoms in dressed adiabatic radio frequency potentials
• Bose-Einstein condensates in RF-dressed adiabatic potentials
• Time-dependent control of ultracold atoms and Bose-Einstein condensates in magnetic traps
• Double-well magnetic trap for Bose-Einstein condensates
• A Smooth, Inductively Coupled Ring Trap for Atoms
• Trapping and cooling of rf-dressed atoms in a quadrupole magnetic field

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• Novel techniques to cool and rotate Bose-Einstein condensates in time-averaged adiabatic potentials
• Inductively guided circuits for ultracold dressed atoms
• A toroidal trap for cold ${}^{87}Rb$ atoms using an rf-dressed quadrupole trap
• Observations of $\lambda /4$ structure in a low-loss radiofrequency-dressed optical lattice
• RF dressed atoms beyond the linear Zeeman effect
• Loading a quantum gas from a hybrid dimple trap to a shell trap
• Inelastic collisions in radiofrequency-dressed mixtures of ultracold atoms
• Quantum Simulations with Bilayer 2D Bose Gases in Multiple-RF-dressed Potentials
• An effective scalar magnetic interaction for resonantly trapped atoms
• Floquet analysis of time-averaged trapping potentials
• Design of a millimetre-scale magnetic surface trap for cold atoms
• Different atom trapping geometries with time averaged adiabatic potentials
• Dispersion Managed Elliptical Atomtronics for Interferometry