Negative quench induced excitation dynamics for ultracold bosons in one-dimensional lattices

Abstract

The nonequilibrium dynamics following a quench of strongly repulsive bosonic ensembles in one-dimensional finite lattices is investigated by employing interaction quenches and/or a ramp of the lattice potential. Both sudden and time-dependent quenches are analyzed in detail. For the case of interaction quenches we address the transition from the strong repulsive to the weakly-interacting regime, suppressing in this manner the heating of the system. The excitation modes such as the cradle process and the local breathing mode are examined via local density observables. In particular, the cradle mode is inherently related to the initial delocalization and, following a negative interaction quench, can be excited only for incommensurate setups with filling larger than unity. Alternatively, a negative quench of the lattice depth which favors the spatial delocalization is used to access the cradle mode for setups with filling smaller than unity. Our results shed light on possible schemes to control the cradle and the breathing modes. Finally, employing the notion of fidelity we study the dynamical response of the system after a diabatic or adiabatic parameter modulation for short and long evolution times. The evolution of the system is obtained numerically using the ab-initio multi-layer multi-configuration time-dependent Hartree method for bosons which permits to follow non-equilibrium dynamics including the corresponding investigation of higher-band effects.

arXiv comment15 pages, 11 figures

References in corpus (40)

• Many-Body Physics with Ultracold Gases
• Feshbach Resonances in Ultracold Gases
• Thermalization and its mechanism for generic isolated quantum systems
• Nonequilibrium dynamics of closed interacting quantum systems
• Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
• Light-cone-like spreading of correlations in a quantum many-body system
• Lieb-Robinson bounds and the generation of correlations and topological quantum order
• Dynamics of Loschmidt echoes and fidelity decay
• The multi-configurational time-dependent Hartree method for bosons: Many-body dynamics of bosonic systems
• Strong-coupling expansions for the pure and disordered bose Hubbard model
• Fragmentation of Bose-Einstein Condensates
• Expansion dynamics of interacting bosons in homogeneous lattices in one and two dimensions
• Pinning quantum phase transition for a Luttinger liquid of strongly interacting bosons
• Universal dynamics of a degenerate unitary Bose gas
• Role of excited states in the splitting dynamics of interacting Bose-Einstein condensates when ramping-up a barrier
• Oscillating Superfluidity of Bosons in Optical Lattices
• Spatial fragmentation of a Bose-Einstein condensate in a double-well potential
• Atom-molecule coherence in Bose gases
• Phase diagram of the bose Hubbard model
• Quantum Quench of an Atomic Mott Insulator
• Reduced density matrices and coherence of trapped interacting bosons
• The Multi-Layer Multi-Configuration Time-Dependent Hartree Method for Bosons: Theory, Implementation and Applications
• Non-Equilibrium Quantum Dynamics of Ultra-Cold Atomic Mixtures: the Multi-Layer Multi-Configuration Time-Dependent Hartree Method for Bosons
• Extracting density-density correlations from in situ images of atomic quantum gases
• Suppression of Quantum Scattering in Strongly Confined Systems
• Quenching small quantum gases: Genesis of the orthogonality catastrophe
• Quantum Breathing of an Impurity in a One-dimensional Bath of Interacting Bosons
• Quantum breathing dynamics of ultracold bosons in 1D-harmonic traps: Unraveling the pathway from few- to many-body systems
• Universality of Fragmentation in the Schrödinger Dynamics of Bosonic Josephson Junctions
• Accurate multi-boson long-time dynamics in triple-well periodic traps
• Interaction Quench Induced Multimode Dynamics of Finite Atomic Ensembles
• Dynamics of correlations in a dilute Bose gas following an interaction quench
• Many-body theory for systems with particle conversion: Extending the multiconfigurational time-dependent Hartree method
• Coupled $\ell$-wave confinement-induced resonances in cylindrically symmetric waveguides
• Quantum breathing mode of trapped bosons and fermions at arbitrary coupling
• Quantum Breathing Mode of Interacting Particles in a One-dimensional Harmonic Trap
• Invariance of the Kohn (sloshing) mode in a conserving theory
• Correlation versus commensurability effects for finite bosonic systems in one-dimensional lattices
• Cold atoms in real-space optical lattices
• Particle-Hole Pair Coherence in Mott Insulator Quench Dynamics

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• Quench Dynamics of Two One-Dimensional Harmonically Trapped Bosons Bridging Attraction and Repulsion
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• Quench Dynamics of Finite Bosonic Ensembles in Optical Lattices with Spatially Modulated Interactions
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• Optimized Observable Readout from Single-shot Images of Ultracold Atoms via Machine Learning
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