Atom trapping with a thin magnetic film

Abstract

We have created a ${}^{87}$Rb Bose-Einstein condensate in a magnetic trapping potential produced by a hard disk platter written with a periodic pattern. Cold atoms were loaded from an optical dipole trap and then cooled to BEC on the surface with radiofrequency evaporation. Fragmentation of the atomic cloud due to imperfections in the magnetic structure was observed at distances closer than 40 $\mu$m from the surface. Attempts to use the disk as an atom mirror showed dispersive effects after reflection.

4 pages, 5 figures

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Cited by in corpus (12)

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• Disorder Potentials near Lithographically Fabricated Atom Chips
• Magnetic-film atom chip with 10 $\mu$m period lattices of microtraps for quantum information science with Rydberg atoms
• Periodic Array of Bose-Einstein condensates in a Magnetic Lattice
• Optimized magnetic lattices for ultracold atomic ensembles
• Fully permanent magnet atom chip for Bose-Einstein condensation
• Sub-micron period lattice structures of magnetic microtraps for ultracold atoms on an atom chip
• Magnetic lattices for ultracold atoms and degenerate quantum gases
• Quasi-1D scattering with general transverse 2D confinement
• Experiments on a videotape atom chip: fragmentation and transport studies
• Permanent magnetic microtraps for ultracold atoms
• Polarization-Sensitive Imaging in Magnetic Environments