Observation of many-body scarring in a Bose--Hubbard quantum simulator
arXiv:2201.00821 · doi:10.1103/PhysRevResearch.5.023010
Abstract
The ongoing quest for understanding nonequilibrium dynamics of complex quantum systems underpins the foundation of statistical physics as well as the development of quantum technology. Quantum many-body scarring has recently opened a window into novel mechanisms for delaying the onset of thermalization by preparing the system in special initial states, such as the state in a Rydberg atom system. Here we realize many-body scarring in a Bose-Hubbard quantum simulator from previously unknown initial conditions such as the unit-filling state. We develop a quantum-interference protocol for measuring the entanglement entropy and demonstrate that scarring traps the many-body system in a low-entropy subspace. Our work makes the resource of scarring accessible to a broad class of ultracold-atom experiments, and it allows one to explore the relation of scarring to constrained dynamics in lattice gauge theories, Hilbert space fragmentation, and disorder-free localization.
8+5 pages, 6+3 figures
References in corpus (21)
- Thermalization and its mechanism for generic isolated quantum systems
- Probing many-body dynamics on a 51-atom quantum simulator
- Many body localization and thermalization in quantum statistical mechanics
- Localization of interacting fermions at high temperature
- Quantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice
- Quantum Many-Body Scars and Hilbert Space Fragmentation: A Review of Exact Results
- Controlling many-body dynamics with driven quantum scars in Rydberg atom arrays
- Emergent SU(2) dynamics and perfect quantum many-body scars
- Competing density-wave orders in a one-dimensional hard-boson model
- Thermalization dynamics of a gauge theory on a quantum simulator
- Mott insulators in strong electric fields
- Discrete time-crystalline order enabled by quantum many-body scars: entanglement steering via periodic driving
- Dynamics of the vacuum state in a periodically driven Rydberg chain
- A proposal for realising quantum scars in the tilted 1D Fermi-Hubbard model
- Catching Bethe phantoms and quantum many-body scars: Long-lived spin-helix states in Heisenberg magnets
- Spin-dependent Optical Superlattice
- Extensive multipartite entanglement from su(2) quantum many-body scars
- Quantum Many-Body Scars and Quantum Criticality
- Numerical study of two-body correlation in a 1D lattice with perfect blockade
- Driving quantum many-body scars in the PXP model
- Robustness of gauge-invariant dynamics against defects in ultracold-atom gauge theories
Cited by in corpus (111)
- Quantum Computing for High-Energy Physics: State of the Art and Challenges. Summary of the QC4HEP Working Group
- Weak Ergodicity Breaking in the Schwinger Model
- Prominent quantum many-body scars in a truncated Schwinger model
- Rydberg superatoms: An artificial quantum system for quantum information processing and quantum optics
- Work extraction from unknown quantum sources
- Dipole condensates in tilted Bose-Hubbard chains
- Local readout and control of current and kinetic energy operators in optical lattices
- Emergence of fluctuating hydrodynamics in chaotic quantum systems
- Quantum state complexity meets many-body scars
- Genuine many-body quantum scars along unstable modes in Bose-Hubbard systems
- Quantum scars and regular eigenstates in a chaotic spinor condensate
- Operator growth and Krylov Complexity in Bose-Hubbard Model
- Emergent Gauge Theory in Rydberg Atom Arrays
- Stark localization as a resource for weak-field sensing with super-Heisenberg precision
- Variational quantum simulation of U(1) lattice gauge theories with qudit systems
- Simulating (2+1)D SU(2) Yang-Mills Lattice Gauge Theory at finite density with tensor networks
- Observation of quantum thermalization restricted to Hilbert space fragments
- Deep thermalization in constrained quantum systems
- Exhaustive Characterization of Quantum Many-Body Scars using Commutant Algebras
- Holographic Quantum Scars
- Embedding Quantum Many-Body Scars into Decoherence-Free Subspaces
- Qu8its for Quantum Simulations of Lattice Quantum Chromodynamics
- Krylov Delocalization/Localization across Ergodicity Breaking
- Preparing quantum many-body scar states on quantum computers
- A Cold-Atom Particle Collider
- Quantum many-body scars in spin models with multibody interactions
- Kinked linear response from non-Hermitian cold-atom pumping
- Bridging quantum criticality via many-body scarring
- Observation of anomalous information scrambling in a Rydberg atom array
- Exploring Hilbert-Space Fragmentation on a Superconducting Processor
- Numerical Methods for Detecting Symmetries and Commutant Algebras
- Hilbert space fragmentation in a long-range system
- Disorder-tunable entanglement at infinite temperature
- Weak universality, quantum many-body scars and anomalous infinite-temperature autocorrelations in a one-dimensional spin model with duality
- Extracting Quantum Many-Body Scarred Eigenstates with Matrix Product States
- Stability of the many-body scars in fermionic spin-1/2 models
- Stirring the false vacuum via interacting quantized bubbles on a 5564-qubit quantum annealer
- Proposal for simulating quantum spin models with the Dzyaloshinskii-Moriya interaction using Rydberg atoms and the construction of asymptotic quantum many-body scar states
- Ergodicity Breaking Under Confinement in Cold-Atom Quantum Simulators
- Robust quantum many-body scars in the one-dimensional spin-1 Kitaev model
- An efficient finite-resource formulation of non-Abelian lattice gauge theories beyond one dimension
- Quantum many-body scars from unstable periodic orbits
- Quantum Many-Body Scarring in a Non-Abelian Lattice Gauge Theory
- Quantum many-body scars with unconventional superconducting pairing symmetries via multibody interactions
- Tower of two-dimensional scar states in a localized system
- Classical route to ergodicity and scarring in collective quantum systems
- Observation of slow relaxation due to Hilbert space fragmentation in strongly interacting Bose-Hubbard chains
- Quantifying Quantum Computational Advantage on a Processor of Ultracold Atoms
- Duality between open systems and closed bilayer systems: Thermofield double states as quantum many-body scars
- Quantum many-body scars in spin-1 Kitaev chain with uniaxial single-ion anisotropy
- Leveraging static quantum many-body scars into period-doubled responses
- Enhanced many-body localization in a kinetically constrained model
- Controlling Many-Body Quantum Chaos: Bose-Hubbard systems
- Non-thermal eigenstates and slow relaxation in quantum Fredkin spin chains
- Observation of ergodicity breaking and quantum many-body scars in spinor gases
- Measuring energy by measuring any other observable
- Nonmesonic Quantum Many-Body Scars in a 1D Lattice Gauge Theory
- Critical behavior of lattice gauge theory Rydberg simulators from effective Hamiltonians
- Many-Body Non-Hermitian Skin Effect with Exact Steady States in the Dissipative Quantum Link Model
- Superconducting Quantum Simulation for Many-Body Physics beyond Equilibrium
- From the Quantum Breakdown Model to the Lattice Gauge Theory
- Probing Confinement Through Dynamical Quantum Phase Transitions: From Quantum Spin Models to Lattice Gauge Theories
- Robust Finite-Temperature Many-Body Scarring on a Quantum Computer
- Quantum many-body scars in the Bose-Hubbard model with a three-body constraint
- Prethermalization in periodically-driven nonreciprocal many-body spin systems
- Controlling nonergodicity in quantum many-body systems by reinforcement learning
- Detecting Many-Body Scars from Fisher Zeros
- Embedding semiclassical periodic orbits into chaotic many-body Hamiltonians
- Exploring quantum criticality and ergodicity-breaking dynamics in spin-1 Kitaev chains via single-ion anisotropies
- Exact volume-law entangled zero-energy eigenstates in a large class of spin models
- Bosonic Quantum Breakdown Hubbard Model
- Quantum Scar States in Coupled Random Graph Models
- Fractonic Quantum Quench in Dipole-constrained Bosons
- Systematic construction of asymptotic quantum many-body scar states and their relation to supersymmetric quantum mechanics
- Two-dimensional quantum breakdown model with Krylov subspace many-body localization
- Hilbert subspace ergodicity
- Subharmonic fidelity revival in a driven PXP model
- Control of dynamical phase transitions and non-ergodic relaxation via spinor phases
- Renormalized dual basis for scalable simulations of 2+1D compact quantum electrodynamics
- Graph theory and tunable slow dynamics in quantum East Hamiltonians
- Measuring temporal entropies in experiments
- Spectroscopic Feature of Quantum Many-Body Scar States
- Mass-Assisted Local Deconfinement in a Confined Lattice Gauge Theory
- Hilbert space fragmentation from lattice geometry
- Coherence-induced deep thermalization transition in random permutation quantum dynamics
- ScarFinder: a detector of optimal scar trajectories in quantum many-body dynamics
- Disorder-Free Localization and Fragmentation in a Non-Abelian Lattice Gauge Theory
- Dissipation Driven Coherent Dynamics Observed in Bose-Einstein Condensates
- Dynamics of antiferromagnetic Dimers in Rydberg Atom Chains
- Quantum simulation of fermionic non-Abelian lattice gauge theories in D with built-in gauge protection
- Relaxation Fluctuations of Correlation Functions: Spin and Random Matrix Models
- Real space thermalization of locally driven quantum magnets
- Persistent revivals in a system of trapped bosonic atoms
- Super-resolution optical trapping of multiple cold atoms
- Quantum Complexity in Rule-Based Constrained Many-Body Models: Scars, Fragmentation, and Chaos
- Additional quantum many-body scars of the spin- model with Fock-space cages and commutant algebras
- Construction of asymptotic quantum many-body scar states in the SU() Hubbard model
- Tighter thermalization bounds for perturbed quantum many-body scars
- Quantum criticality and factorization in a constrained Rydberg spin chain
- Stabilization of Granovskii-Zhedanov scars of the XYZ quantum spin chain via non-Hermitian spin relaxation
- Gaussian state approximation of quantum many-body scars
- Robust quantum many-body scars in lattice gauge theories
- Real-space blocking of qubit variables on parallel lattice gauge theory links for quantum simulation
- Unconventional early-time relaxation in the Rydberg chain
- Third quantization with Hartree approximation for open-system bosonic transport
- Exploring the properties of quantum scars in a toy model
- Edge-Edge Correlations without Edge-States: -clustering State as Ground State of the Extended Attractive SU(3) Hubbard Chain
- A solvable model for strongly interacting nonequilibrium excitons
- Engineering long-range and multi-body interactions via global kinetic constraints
- Revealing emergent many-body phenomena by analyzing large-scale space-time records of monitored quantum systems
- Quantum Hall correlations in tilted extended Bose-Hubbard chains