| Autor: |
Smith, N L, Heathcote, W H, Hechenblaikner, G, Nugent, E, Foot, C J |
| Zdroj: |
Journal of Physics B: Atomic, Molecular and Optical Physics; February 2005, Vol. 38 Issue: 3 p223-235, 13p |
| Abstrakt: |
We have added an optical potential to a conventional time-averaged orbiting potential (TOP) trap to create a highly anisotropic hybrid trap for ultracold atoms. Axial confinement is provided by the optical potential; the maximum frequency currently obtainable in this direction is 2.2 kHz for rubidium. The radial confinement is independently controlled by the magnetic trap and can be a factor of 700 times smaller than in the axial direction. This large anisotropy is more than sufficient to confine condensates with ~105atoms in a quasi-2D (Q2D) regime, and we have verified this by measuring a change in the free expansion of the condensate; our results agree with a variational model. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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