We report the Bragg spectroscopy of interacting one-dimensional Bose gases loaded in an optical latticeacross the superfluid to the Mott-insulator phase transition. Elementary excitations are created with anonzero momentum and the response of the correlated 1D gases is in the linear regime. The complexity ofthe strongly correlated quantum phases is directly displayed in the spectra which exhibit novel features.This work paves the way for a precise characterization of the state of correlated gases in optical lattices.
Exploring correlated 1D Bose gases from the superfluid to the Mott-insulator state by inelastic light scattering
N Fabbri;
2009
Abstract
We report the Bragg spectroscopy of interacting one-dimensional Bose gases loaded in an optical latticeacross the superfluid to the Mott-insulator phase transition. Elementary excitations are created with anonzero momentum and the response of the correlated 1D gases is in the linear regime. The complexity ofthe strongly correlated quantum phases is directly displayed in the spectra which exhibit novel features.This work paves the way for a precise characterization of the state of correlated gases in optical lattices.File in questo prodotto:
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