Demonstration of an inductively coupled ring trap for cold atoms

Pritchard, J. D. and Dinkelaker, A. N. and Arnold, A. S. and Griffin, P. F. and Riis, E. (2012) Demonstration of an inductively coupled ring trap for cold atoms. New Journal of Physics, 14. 103047. ISSN 1367-2630 (https://doi.org/10.1088/1367-2630/14/10/103047)

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Abstract

We report the first demonstration of an inductively coupled magnetic ring trap for cold atoms. A uniform, ac magnetic field is used to induce current in a copper ring, which creates an opposing magnetic field that is time-averaged to produce a smooth cylindrically symmetric ring trap of radius 5 mm. We use a laser-cooled atomic sample to characterize the loading efficiency and adiabaticity of the magnetic potential, achieving a vacuum-limited lifetime in the trap. This technique is suitable for creating scalable toroidal waveguides for applications in matter-wave interferometry, offering long interaction times and large enclosed areas.

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• Item metadata

  Item type:	Article
  ID code:	42451
  Dates:	Date Event 30 October 2012 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	03 Jan 2013 15:56
  Last modified:	08 Apr 2024 20:17
  URI:	https://strathprints.strath.ac.uk/id/eprint/42451