Affordable Access

deepdyve-link
Publisher Website

The Mott insulator transition in two dimensions

Authors
  • Spielman, I. B.
  • Phillips, W. D.
  • Porto, J. V.
Type
Published Article
Publication Date
Feb 01, 2007
Submission Date
Jun 08, 2006
Identifiers
DOI: 10.1103/PhysRevLett.98.080404
arXiv ID: cond-mat/0606216
Source
arXiv
License
Unknown
External links

Abstract

Cold atoms confined in periodic potentials are remarkably versatile quantum systems for implementing simple models prevalent in condensed matter theory. In the current experiment, we realize the 2D Bose-Hubbard model by loading a Bose-Einstein condensate into an optical lattice, and we study the resulting Mott insulating state (a phase of matter in which atoms are localized on specific lattice sites). We measure momentum distributions which agree quantitatively with theory (no adjustable parameters). We also study correlations in atom shot nose and observe a pronounced dependence on the lattice depth, this dependence indicates geometric effects to first order and suggests deviations due to higher order corrections.

Report this publication

Statistics

Seen <100 times