Non-Gibbs states on a Bose-Hubbard lattice

@article{Cherny2019NonGibbsSO,
  title={Non-Gibbs states on a Bose-Hubbard lattice},
  author={A. Cherny and T. Engl and S. Flach},
  journal={Physical Review A},
  year={2019},
  volume={99}
}
We study the equilibrium properties of the repulsive quantum Bose-Hubbard model at high temperatures in arbitrary dimensions, with and without disorder. In its microcanonical setting the model conserves energy and particle number. The microcanonical dynamics is characterized by a pair of two densities: energy density $\varepsilon$ and particle number density $n$. The macrocanonical Gibbs distribution also depends on two parameters: the inverse nonnegative temperature $\beta$ and the chemical… Expand

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