Hopping modulation in a one-dimensional Fermi-Hubbard Hamiltonian.

@article{Massel2009HoppingMI,
  title={Hopping modulation in a one-dimensional Fermi-Hubbard Hamiltonian.},
  author={F. Massel and M. Leskinen and P. T{\"o}rm{\"a}},
  journal={Physical review letters},
  year={2009},
  volume={103 6},
  pages={
          066404
        }
}
We consider a strongly repulsive two-component Fermi gas in a one-dimensional optical lattice described in terms of a Hubbard Hamiltonian. We analyze the response of the system to a periodic modulation of the hopping amplitude in the presence of a large two-body interaction. By (essentially) the exact simulations of the time evolution, we find a nontrivial double occupancy frequency dependence. We show how the dependence relates to the spectral features of the system given by the Bethe ansatz… Expand
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