Interaction quench of dipolar bosons in a one-dimensional optical lattice
arXiv:2401.10317 · doi:10.1103/PhysRevResearch.7.013257
Abstract
A Tonks-Girardeau (TG) gas is a highly correlated quantum state of strongly interacting bosons confined to one dimension, where repulsive interactions make the particles behave like impenetrable fermions. By suddenly tuning these interactions to the attractive regime, it is possible to realize a super-Tonks-Girardeau (sTG) gas -- a highly excited, metastable state of strongly attractive bosons with unique stability properties. Inspired by the sTG quench scenario, we investigate a similar setup but with the inclusion of long-range dipolar interactions, which modify the system away from the TG Mott insulating limit. We simulate an interaction quench on dipolar bosons initially prepared in various states and fillings, using real-space densities, orbital occupations, Glauber correlation functions, and autocorrelation functions to probe post-quench stability. Our results reveal that stability is maintained only at very weak dipolar interaction strengths when starting from a unit-filled TG Mott state. In contrast, all cluster states -- whether unit-filled or doubly-filled -- eventually collapse under attractive interactions. This collapse is not always visible in the density profile but becomes apparent in the autocorrelation function, indicating complex many-body restructuring of the quantum state. Our findings underscore the potential of dipolar interactions to drive novel quantum dynamics and highlight the delicate balance required to stabilize excited states in long-range interacting systems.
16 pages, 17 figures, 4 appendices; accepted version
References in corpus (36)
- Bose-Einstein condensation of chromium
- Measuring the Chern number of Hofstadter bands with ultracold bosonic atoms
- Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
- Supersolid formation in a quantum gas breaking continuous translational symmetry
- Quantum Many-Body Scars and Hilbert Space Fragmentation: A Review of Exact Results
- Transient supersolid properties in an array of dipolar quantum droplets
- Long-lived and transient supersolid behaviors in dipolar quantum gases
- Dipolar physics: A review of experiments with magnetic quantum gases
- The multi-configurational time-dependent Hartree method for bosons: Many-body dynamics of bosonic systems
- d-wave collapse and explosion of a dipolar Bose-Einstein condensate
- Role of excited states in the splitting dynamics of interacting Bose-Einstein condensates when ramping-up a barrier
- Observation of a continuous time crystal
- Observation of Bose-Einstein Condensation of Dipolar Molecules
- General variational many-body theory with complete self-consistency for trapped bosonic systems
- Exact quantum dynamics of bosons with finite-range time-dependent interactions of harmonic type
- Condensate fragmentation as a sensitive measure of the quantum many-body behavior of bosons with long-range interactions
- Engineering and probing non-Abelian chiral spin liquids using periodically driven ultracold atoms
- Heating a dipolar quantum fluid into a solid
- Tuning anomalous Floquet topological bands with ultracold atoms
- Supersolidity in ultra-cold dipolar gases
- Super-Tonks-Girardeau regime in trapped one-dimensional dipolar gases
- Multi-Channel Atomic Scattering and Confinement-Induced Resonances in Waveguides
- Feshbach resonance scattering under cylindrical harmonic confinement
- Excitations of attractive 1-D bosons: Binding vs. fermionization
- Ground-State Properties of a One-Dimensional System of Hard Rods
- Accuracy of quantum simulators with ultracold dipolar molecules: a quantitative comparison between continuum and lattice descriptions
- Quench dynamics and scaling laws in topological nodal loop semimetals
- Fragmentation and correlations in a rotating Bose-Einstein condensate undergoing breakup
- Quantum Metric Unveils Defect Freezing in Non-Hermitian Systems
- Superexchange Liquefaction of Strongly Correlated Lattice Dipolar Bosons
- Unbounded entropy production and violent fragmentation for repulsive-to-attractive interaction quench in long-range interacting systems
- Dynamics of Ultracold Bosons in Artificial Gauge Fields: Angular Momentum, Fragmentation, and the Variance of Entropy
- Ultrastable super-Tonks-Girardeau gases under weak dipolar interactions
- Strongly interacting bosons in 1D disordered lattice: phase coherence of distorted Mott phases
- Condensates Breaking Up Under Rotation
- Super-Tonks-Girardeau Quench in the Extended Bose-Hubbard Model