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Ferromagnets for integrated atom optics

2004; American Institute of Physics; Volume: 95; Issue: 8 Linguagem: Inglês

10.1063/1.1667598

1520-8850

Mukund Vengalattore, Richard Conroy, W. Rooijakkers, Mara Prentiss,

Atomic and Subatomic Physics Research

A ferromagnetic atom chip for trapping neutral atoms above a substrate is fabricated and characterized. The chip is capable of generating an anisotropic quadrupole trap with gradients in excess of 15 kG/cm at a distance of more than 100 μm from the surface. This is a promising route to the study of ultracold low dimensional systems, interferometry, and atom optics which require tight confinement, while alleviating the problems of fragmentation seen in wire-based chips.