Abstract
We present a complete recipe to extract the density-density correlations and the static structure factor of a two-dimensional (2D) atomic quantum gas from in situ imaging. Using images of non-interacting thermal gases, we characterize and remove the systematic contributions of imaging aberrations to the measured density-density correlations of atomic samples. We determine the static structure factor and report the results on weakly interacting 2D Bose gases, as well as strongly interacting gases in a 2D optical lattice. In the strongly interacting regime, we observe a strong suppression of the static structure factor at long wavelengths.
Original language | English (US) |
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Article number | 075019 |
Journal | New Journal of Physics |
Volume | 13 |
DOIs | |
State | Published - Jul 2011 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy