1. Entangling many-body bound states with propagative modes in Bose-Hubbard systems
- Author
-
Guillaume Roux, Dragi Karevski, Helge Aufderheide, Mario Collura, Institut Jean Lamour (IJL), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Department Biological Physics [Dresden], Max Planck Institute for the Physics of Complex Systems (MPI-PKS), Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Laboratoire de Physique Théorique et Modèles Statistiques (LPTMS), and Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)
- Subjects
Physics ,Condensed Matter::Quantum Gases ,Optical lattice ,Quantum Physics ,[PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas] ,FOS: Physical sciences ,Observable ,Quantum entanglement ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Quantum evolution ,Settore FIS/03 - Fisica della Materia ,010305 fluids & plasmas ,Coupling (physics) ,Classical mechanics ,[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] ,Quantum Gases (cond-mat.quant-gas) ,Quantum mechanics ,0103 physical sciences ,Bound state ,010306 general physics ,Condensed Matter - Quantum Gases ,Quantum Physics (quant-ph) ,Quantum ,Boson - Abstract
The quantum evolution of a cloud of bosons initially localized on part of a one dimensional optical lattice and suddenly subjected to a linear ramp is studied, realizing a quantum analog of the "Galileo ramp" experiment. The main remarkable effects of this realistic setup are revealed using analytical and numerical methods. Only part of the particles are ejected for a high enough ramp, while the others remain self-trapped. Then, the trapped density profile displays rich dynamics with Josephson-like oscillations around a plateau. This setup, by coupling bound states to propagative modes, creates two diverging condensates for which the entanglement is computed and related to the equilibrium one. Further, we address the role of integrability on the entanglement and on the damping and thermalization of simple observables., Comment: 12 pages, 12 figures
- Published
- 2012