Lattice-Ramp Induced Dynamics in an Interacting Bose-Bose Mixture
arXiv:0911.0697 · doi:10.1103/PhysRevA.81.043620
Abstract
We investigate a bosonic quantum gas consisting of two interacting species in an optical lattice at zero and finite temperature. The equilibrium properties and dynamics of this system are obtained by means of the Gutzwiller mean-field method. In particular we model recent experiments where the ramp-up of the optical lattice occurs on a time scale comparable to the tunneling time of the bosons. We demonstrate the violation of adiabaticity of this process with respect to the many-body quantum states, and reproduce and explain the oscillations of the visibility as a function of ramp-up time, as seen in experiments.
11 pages, 12 figures
References in corpus (15)
- Many-Body Physics with Ultracold Gases
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Time-resolved Observation and Control of Superexchange Interactions with Ultracold Atoms in Optical Lattices
- Bose-Fermi Mixtures in a Three-dimensional Optical Lattice
- Localization of bosonic atoms by fermionic impurities in a 3d optical lattice
- Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate
- Degenerate Bose-Bose mixture in a three-dimensional optical lattice
- Ultracold Heteronuclear Fermi-Fermi Molecules
- Role of interactions in 87Rb-40K Bose-Fermi mixtures in a 3d optical lattice
- Spin gradient thermometry for ultracold atoms in optical lattices
- Expansion of a quantum gas released from an optical lattice
- Supersolid Bose-Fermi Mixtures in Optical Lattices
- Correlated bosons on a lattice: Dynamical mean-field theory for Bose-Einstein condensed and normal phases
- Single-atom density of states of an optical lattice
- Mixtures of strongly interacting bosons in optical lattices
Cited by in corpus (20)
- Quantum trajectories and open many-body quantum systems
- Fermionic transport in a homogeneous Hubbard model: Out-of-equilibrium dynamics with ultracold atoms
- Quantum quenches and off-equilibrium dynamical transition in the infinite-dimensional Bose-Hubbard model
- Radio frequency spectroscopy of polarons in ultracold Bose gases
- Non-equilibrium dynamics of the Bose-Hubbard model: A projection operator approach
- Local versus global equilibration near the bosonic Mott-superfluid transition
- Dynamic freezing of strongly correlated ultracold bosons
- Bloch oscillations of bosonic lattice polarons
- A projection operator approach to the Bose-Hubbard model
- New theoretical approaches to Bose polarons
- Rigorous mean-field dynamics of lattice bosons: Quenches from the Mott insulator
- Spin-squeezed atomic crystal
- Quantum droplet of a two-component Bose gas in an optical lattice near the Mott insulator transition
- Collective modes of a strongly interacting Bose gas: probing the Mott transition
- Relaxation of Fermionic Excitations in a Strongly Attractive Fermi Gas in an Optical Lattice
- Dynamical instability in the S=1 Bose-Hubbard model
- Fragmentation, domain formation and atom number fluctuations of a two-species Bose-Einstein condensate in an optical lattice
- Extended Bose-Hubbard models with Rydberg macrodimer dressing
- Mott insulator dynamics
- Phase Coherence and Fragmentation of Two-Component Bose-Einstein Condensates Loaded in State-Dependent Optical Lattices