Atomic, Molecular, and Optical Physics Seminar

Bose-Einstein Condensates in Microfabricated Waveguides

Dr. David Kielpinski

MIT

Gaseous Bose-Einstein condensates of 2-3x106 Na atoms were loaded into a microfabricated magnetic trap using optical tweezers. Subsequently, the condensates were released into a magnetic waveguide and propagated 12 mm. Single-mode propagation was observed along homogeneous segments of the waveguide. Inhomogeneities in the guiding potential arose from geometric deformations of the microfabricated wires and caused strong transverse excitations. Finer perturbations to the guiding potential fragmented the condensate when it was brought closer to the surface. These perturbations may limit the ultimate performance of atom chips.

Monday, April 21, 2003
4:00 PM
Gant Science Complex
Physics Department
Room P121


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