All-optical path to BEC passes through the Peach StateBack to News
Authors and contributors: Murray Barrett, Jacob Sauer, Prof. Michael Chapman
[Historical report created from GSU BEC Homepage:]
"At the CLEO/QELS conference in Baltimore, a research group from the Georgia Institute of Technology reported an all-optical approach to BEC.
A BEC has been created using all-optical methods on April 18, 2001.
We employ 87Rb confined in a crossed beam dipole trap formed using two orthogonal CO2 laser beams. We load from a simple vapor cell MOT and achieve initial phase space densities of > 0.001. We evaporatively cool the sample to BEC by ramping down the laser power in 2.5 seconds. The resulting condensates are spinor mixtures containing 35,000 atoms distributed between the MF = -1, 0, 1 states.
The unique features of our technique should be extendable to more complex spinor condensates (e.g. 85Rb), multi-atom (and molecule) mixtures, and species that cannot be confined magnetically.
- Murray Barrett
- Jacob Sauer
- Prof. Michael Chapman
For further information, contact email@example.com "
Posted: 11 Aug 2005 Date: 18 Apr 2001