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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.
Original language | English |
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Article number | 103047 |
Number of pages | 13 |
Journal | New Journal of Physics |
Volume | 14 |
DOIs | |
Publication status | Published - 30 Oct 2012 |
Keywords
- demonstration
- inductively coupled
- ring trap
- cold atoms
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