Quantum Quenches and Off-Equilibrium Dynamical Transition in the Infinite-Dimensional Bose-Hubbard Model

Journal Article · Fri Nov 26 00:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.220401· OSTI ID:21541741

Sciolla, Bruno; Biroli, Giulio ^[1]

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1. Institut de Physique Theorique, CEA/DSM/IPhT-CNRS/URA 2306 CEA-Saclay, F-91191 Gif-sur-Yvette (France)

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.

• OSTI ID: 21541741
• Journal Information: Physical Review Letters, Vol. 105, Issue 22; Other Information: DOI: 10.1103/PhysRevLett.105.220401; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
EQUILIBRIUM
FERMIONS
HUBBARD MODEL
MAPPING
MATHEMATICAL EVOLUTION
MEAN-FIELD THEORY
QUANTUM MECHANICS
QUENCHING
SUPERFLUIDITY
CALCULATION METHODS
CRYSTAL MODELS
EVOLUTION
MATHEMATICAL MODELS
MECHANICS