Equilibration and prethermalization in the Bose-Hubbard and Fermi-Hubbard models

F. Queisser, K. V. Krutitsky, P. Navez +1

We study the Bose and Fermi Hubbard model in the (formal) limit of large coordination numbers $Z\gg 1$. Via an expansion into powers of $1/Z$, we establish a hierarchy of correlatio…