title: Thermalization of Bipartite Bose-Hubbard Models.
abstract: We study the time evolution of a bipartite Bose-Hubbard model prepared far from equilibrium. When the classical dynamics is chaotic, we observe ergodization of the number distribution and a constant increase of the entanglement entropy between the constituent subsystems until it saturates to thermal equilibrium values. No thermalization is obtained when the system is launched in quasi-integrable phase space regions.
authors.affiliation: Department of Chemistry, Ben-Gurion University , Beer-Sheva 84105, Israel.
authors.forename: Christine
authors.initials: C
authors.lastname: Khripkov
authors.affiliation: Department of Physics, Ben-Gurion University , Beer-Sheva 84105, Israel.
authors.forename: Doron
authors.initials: D
authors.lastname: Cohen
authors.affiliation: Department of Chemistry, Ben-Gurion University , Beer-Sheva 84105, Israel.
authors.forename: Amichay
authors.initials: A
authors.lastname: Vardi