A gradient and offset compensated Ioffe–Pritchard trap for Bose–Einstein condensation experiments

2012  Journal of Physics B   45   235301 

V. Bolpasi, J. Grucker, M. J. Morrissey, and W. von Klitzing


Abstract: The Ioffe–Pritchard trap is the workhorse of modern cold atom physics. Here, we present a novel Ioffe–Pritchard trap coil configuration based purely on circular coils. By eliminating the traditional Ioffe bars one can increase the gradient and thus the radial trapping frequency by almost a factor 2. We also present a method to achieve minimal coupling between the gradient, curvature and offset fields of the trap, thus facilitating the dynamic control of the trapping frequencies and aspect ratio.

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