Ultrastable CO2 Laser Trapping of Lithium Fermions

Details Ultrastable CO2 Laser Trapping of Lithium Fermions Ultrastable CO2 Laser Trapping of Lithium Fermions

2000-03-22

arxiv.org/abs/physics/0003049v1

Phys. Rev. Lett. 82, 4204 (1999)

Physics

Atomic Physics

4 pages using REVTeX, 1 eps figure

Scientific paper

10.1103/PhysRevLett.82.4204

We demonstrate an ultrastable CO2 laser trap that provides tight confinement of neutral atoms with negligible optical scattering and minimal laser-noise- induced heating. Using this method, fermionic 6Li atoms are stored in a 0.4 mK deep well with a 1/e trap lifetime of 300 sec, consistent with a background pressure of 10^(-11) Torr. To our knowledge, this is the longest storage time ever achieved with an all-optical trap, comparable to the best reported magnetic traps.

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