Novel Ferromagnetic Atom Waveguide with in situ loading

Details Novel Ferromagnetic Atom Waveguide with in situ loading Novel Ferromagnetic Atom Waveguide with in situ loading

2001-06-09

arxiv.org/abs/physics/0106028v1

PRA 66, 053403 (2002)

Physics

Atomic Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevA.66.053403

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.

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