Condensate fraction in a 2D Bose gas measured across the Mott-insulator transition
Other Condensed Matter
2009-11-13 v1
Abstract
We realize a single-band 2D Bose-Hubbard system with Rb atoms in an optical lattice and measure the condensate fraction as a function of lattice depth, crossing from the superfluid to the Mott-insulating phase. We quantitatively identify the location of the superfluid to normal transition by observing when the condensed fraction vanishes. Our measurement agrees with recent quantum Monte Carlo calculations for a finite-sized 2D system to within experimental uncertainty.
Keywords
Cite
@article{arxiv.0803.3797,
title = {Condensate fraction in a 2D Bose gas measured across the Mott-insulator transition},
author = {I. B. Spielman and W. D. Phillips and J. V. Porto},
journal= {arXiv preprint arXiv:0803.3797},
year = {2009}
}
Comments
4 pages, 3 figures