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An Optically Plugged Quadrupole Trap for Bose-Einstein Condensates

其他凝聚态物理 2009-11-10 v1

摘要

We created sodium Bose-Einstein condensates in an optically plugged quadrupole magnetic trap (OPT). A focused, 532nm laser beam repelled atoms from the coil center where Majorana loss is significant. We produced condensates of up to 3×1073 \times 10^7 atoms, a factor of 60 improvement over previous work [1], a number comparable to the best all-magnetic traps, and transferred up to 9×1069 \times 10^6 atoms into a purely optical trap. Due to the tight axial confinement and azimuthal symmetry of the quadrupole coils, the OPT shows promise for creating Bose-Einstein condensates in a ring geometry.

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引用

@article{arxiv.cond-mat/0406341,
  title  = {An Optically Plugged Quadrupole Trap for Bose-Einstein Condensates},
  author = {D. S. Naik and C. Raman},
  journal= {arXiv preprint arXiv:cond-mat/0406341},
  year   = {2009}
}