<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Many-Body Dynamics of Ultracold Atoms in Optical Lattices"^^ . "In this work, we study complex many-body systems consisting of ultracold bosonic atoms in optical lattices.Motivated by the state-of-the-art of experiments realizing higher bands physics with ultracold atoms, we use a one-dimensional bichromatic optical lattice, whose properties permit to engineer a very well isolated two-band system. The underlying single- and manyparticle physics is investigated based on a two-band Bose-Hubbard Hamiltonian. An external\r\nStark force is introduced to drive the inter-band dynamics. In a first, andmain part of thiswork, we numerically characterize ourmany-bodyWannier-Stark systemthrough its spectral and dynamical properties, in terms of important system parameters. We present a detailed study of\r\nthe diffusion in Hilbert space. Relaxation and controlled non-adiabatic dynamics are studied by driving the system across the spectral resonances, mainly by using quantum sweeps. In a second part, we implement an effective Hamiltonian in order to characterize the spectral properties\r\nof a leaky one-dimensional optical lattice with controlled dissipation. We show that the stability of long-lived localizedmany-body states, i.e. discrete solitonic states, can be described with good accuracy by the decay rates statistics of the accessible complex energy spectrum of\r\nthe effective (non-hermitian)Hamiltonian."^^ . "2013" . . . . . . . "Carlos Alberto"^^ . "Parra Murillo"^^ . "Carlos Alberto Parra Murillo"^^ . . . . . . "Many-Body Dynamics of Ultracold Atoms in Optical Lattices (PDF)"^^ . . . "Dissertation_CarlosParraMurillo.pdf"^^ . . . "Many-Body Dynamics of Ultracold Atoms in Optical Lattices (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Many-Body Dynamics of Ultracold Atoms in Optical Lattices (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Many-Body Dynamics of Ultracold Atoms in Optical Lattices (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Many-Body Dynamics of Ultracold Atoms in Optical Lattices (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Many-Body Dynamics of Ultracold Atoms in Optical Lattices (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #15136 \n\nMany-Body Dynamics of Ultracold Atoms in Optical Lattices\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .