Trapping and Control of Ultracold Atoms Near A Surface
Abstract
Ferromagnetic structures in novel geometries can be used to create Magneto-optic and magnetic waveguides with large numbers of atoms in a steep potential[1]. Modifications to the original design have resulted in an enhanced capture volume for loading atoms into the MOT. In addition, trapped atomic clouds can be adiabatically split and recombined by adding local plugging fields along the waveguide. This scheme also permits dynamic control of the properties (shape, gradient and position) of the magnetic traps. Recent results include loading a MOT with up to 10^9 atoms a few millimeters ( 3mm) from a surface and in situ transfer of these atoms into tightly confined magnetic traps with large aspect ratios ( 1:1000). These results bear quantitative agreement with simulations based on a simple model. [1] Novel Ferromagnetic Atom Waveguide with in situ loading, M. Vengalattore, W. Rooijakkers, M. Prentiss, arXiv:physics/0106028
- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- May 2002
- Bibcode:
- 2002APS..DMP.B2010V