Phys. Rev. A 72, 051605(R) (2005) [4 pages]Time-orbiting potential trap for Bose-Einstein condensate interferometry
We describe an atom trap for Bose-Einstein condensates of 87Rb to be used in atom interferometry experiments. The trap is based on a time-orbiting potential waveguide. It supports the atoms against gravity while providing weak confinement to minimize interaction effects. We observe harmonic oscillation frequencies (ωx,ωy,ωz) as low as 2π×(6.0,1.2,3.3) Hz. Up to 2×104 condensate atoms have been loaded into the trap, at estimated temperatures as low as 850 pK. We anticipate that interferometer measurement times of 1 s or more should be achievable in this device. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.051605
DOI:
10.1103/PhysRevA.72.051605
PACS:
03.75.Be, 39.20.+q
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