Efficient Production of Large 39K Bose-Einstein Condensates
Quantum Gases
2010-12-10 v2
Abstract
We describe an experimental setup and the cooling procedure for producing 39K Bose-Einstein condensates of over 4x10^5 atoms. Condensation is achieved via a combination of sympathetic cooling with 87Rb in a quadrupole-Ioffe-configuration (QUIC) magnetic trap, and direct evaporation in a large volume crossed optical dipole trap, where we exploit the broad Feshbach resonance at 402 G to tune the 39K interactions from weak and attractive to strong and repulsive. In the same apparatus we create quasi-pure 87Rb condensates of over 8x10^5 atoms.
Cite
@article{arxiv.1010.3739,
title = {Efficient Production of Large 39K Bose-Einstein Condensates},
author = {Robert L. D. Campbell and Robert P. Smith and Naaman Tammuz and Scott Beattie and Stuart Moulder and Zoran Hadzibabic},
journal= {arXiv preprint arXiv:1010.3739},
year = {2010}
}
Comments
7 pages, 5 figures; figure font compatibility improved