Precision measurements on a tunable Mott insulator of ultracold atoms.

@article{Mark2011PrecisionMO,
  title={Precision measurements on a tunable Mott insulator of ultracold atoms.},
  author={M. Mark and E. Haller and K. Lauber and J. Danzl and A. Daley and H.-C. N{\"a}gerl},
  journal={Physical review letters},
  year={2011},
  volume={107 17},
  pages={
          175301
        }
}
  • M. Mark, E. Haller, +3 authors H.-C. Nägerl
  • Published 2011
  • Physics, Medicine
  • Physical review letters
  • We perform precision measurements on a Mott-insulator quantum state of ultracold atoms with tunable interactions. We probe the dependence of the superfluid-to-Mott-insulator transition on the interaction strength and explore the limits of the standard Bose-Hubbard model description. By tuning the on-site interaction energies to values comparable to the interband separation, we are able to quantitatively measure number-dependent shifts in the excitation spectrum caused by effective multibody… CONTINUE READING
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