Trap modulation spectroscopy of the Mott-insulator transition in optical lattices
Other Condensed Matter
2009-11-13 v1
Abstract
We introduce a new technique to probe the properties of an interacting cold atomic gas that can be viewed as a dynamical compressibility measurement. We apply this technique to the study of the superfluid to Mott insulator quantum phase transition in one and three dimensions for a bosonic gas trapped in an optical lattice. Excitations of the system are detected by time-of-flight measurements. The experimental data for the one-dimensional case are in good agreement with the results of a time-dependent density matrix renormalization group calculation.
Keywords
Cite
@article{arxiv.0812.3005,
title = {Trap modulation spectroscopy of the Mott-insulator transition in optical lattices},
author = {H. Lignier and A. Zenesini and D. Ciampini and O. Morsch and E. Arimondo and S. Montangero and G. Pupillo and R. Fazio},
journal= {arXiv preprint arXiv:0812.3005},
year = {2009}
}
Comments
5 pages, 5 figures