All Optical Formation of an Atomic Bose-Einstein Condensate

Preprint

4 June 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0106027

Abstract

We have created a Bose-Einstein condensate of 87Rb atoms directly in an optical trap. We employ a quasi-electrostatic dipole force trap formed by two crossed CO_2 laser beams. Loading directly from a sub-doppler laser-cooled cloud of atoms results in initial phase space densities of ~1/200. Evaporatively cooling through the BEC transition is achieved by lowering the power in the trapping beams over ~ 2 s. The resulting condensates are F=1 spinors with 3.5 x 10^4 atoms distributed between the m_F = (-1,0,1) states.

Keywords

BOSE EINSTEIN CONDENSATE
EINSTEIN CONDENSATE
OPTICAL FORMATION
DOPPLER LASER
OPTICAL TRAP
ATOMIC BOSE
LASER
TRAP

All Related Versions

Version 1, 2001-06-04, ArXiv
Published version: Physical Review Letters, 87 (1), 010404.

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