Hopkins, Asa and Lev, Benjamin and Mabuchi, Hideo (2004) Proposed magnetoelectrostatic ring trap for neutral atoms. Physical Review A, 70 (5). Art. No. 053616. ISSN 1050-2947 http://resolver.caltech.edu/CaltechAUTHORS:HOPpra04
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We propose a trap for confining cold neutral atoms in a microscopic ring using a magnetoelectrostatic potential. The trapping potential is derived from a combination of a repulsive magnetic field from a hard drive atom mirror and the attractive potential produced by a charged disk patterned on the hard drive surface. We calculate a trap frequency of [29.7,42.6,62.8] kHz and a depth of [16.1,21.8,21.8] MHz for [Cs-133, Rb-87, K-40], and discuss a simple loading scheme and a method for fabrication. This device provides a one-dimensional potential in a ring geometry that may be of interest to the study of trapped quantum degenerate one-dimensional gases.
|Additional Information:||©2004 The American Physical Society. Received 6 February 2004; revised 12 February 2004; published 22 November 2004. The authors thank Axel Scherer for helpful discussions. This work was supported by the Multidisciplinary University Research Initiative program under Grant No. DAAD19-00-1-0374. A.H. acknowledges financial support from the NSF.|
|Subject Keywords:||laser cooling; atom optics; caesium; rubidium; potassium; Bose-Einstein condensation; magnetic field effects; hard discs; disc drives|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||23 May 2006|
|Last Modified:||26 Dec 2012 08:53|
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