Extracting density-density correlations from in situ images of atomic quantum gases

Chen Lung Hung, Xibo Zhang, Li Chung Ha, Shih Kuang Tung, Nathan Gemelke, Cheng Chin

Research output: Contribution to journalReview articlepeer-review

65 Scopus citations


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 languageEnglish (US)
Article number075019
JournalNew Journal of Physics
StatePublished - Jul 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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