Novel Ferromagnetic Atom Waveguide with in situ loading

Abstract

Magneto-optic and magnetostatic trapping is realized near a surface using current carrying coils wrapped around magnetizable cores. A cloud of 10^7 Cesium atoms is created with currents less than 50 mA. Ramping up the current while maintaining optical dissipation leads to tightly confined atom clouds with an aspect ratio of 1:1000. We study the 3D character of the magnetic potential and characterize atom number and density as a function of the applied current. The field gradient in the transverse dimension has been varied from < 10 G/cm to > 1 kG/cm. By loading and cooling atoms in-situ, we have eliminated the problem of coupling from a MOT into a smaller phase space.

4 pages, 4 figures

Cited by in corpus (8)

• An Atom Michelson Interferometer on a Chip Using a Bose-Einstein Condensate
• Bidirectional propagation of cold atoms in a "stadium" shaped magnetic guide
• Momentum distribution for a one-dimensional trapped gas of hard-core bosons
• Time domain deBroglie wave interferometry along a magnetic guide
• Compact, Robust Source of Cold Atoms for Efficient Loading of a Magnetic Guide
• Observation of Caustics in the Trajectories of Cold Atoms in a Linear Magnetic Potential
• Propagation of guided cold atoms
• Mapping a cloud of ultracold atoms onto a miniature storage ring