Publication : t10/123
Quantum Quenches and Off-Equilibrium Dynamical Transition in the Infinite-Dimensional Bose-Hubbard Model
Sciolla B. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)Biroli G. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Abstract:Année de publication : 2010
We study the off-equilibrium dynamics of the infinite dimensional Bose Hubbard Model after a quantum quench. The dynamics can be analyzed exactly by mapping it to an effective Newtonian evolution. For integer filling, we find a dynamical transition separating regimes of small and large quantum quenches starting from the superfluid state. This transition is very similar to the one found for the fermionic Hubbard model by mean field approximations.
Revue : Phys. Rev. Lett. 105 220401 (2010)
DOI : 10.1103/PhysRevLett.105.220401
Preprint : arXiv:1007.5238v2
Langue : Anglais
Fichier(s) à télécharger :
publi.pdf
