Quantum information scrambling in the presence of weak and strong thermalization
arXiv:2008.01477 · doi:10.1103/PhysRevA.104.022405
Abstract
Quantum information scrambling under many-body dynamics is of fundamental interest. The tripartite mutual information can quantify the scrambling via its negative value. Here, we first study the quench dynamics of tripartite mutual information in a non-integrable Ising model where the strong and weak thermalization are observed with different initial states. We numerically show that the fastest scrambling can occur when the energy density of the chosen initial state possesses the maximum density of states. We then present an experimental protocol for observing weak and strong thermalization in a superconducting qubit array. Based on the protocol, the relation between scrambling and thermalization revealed in this work can be directly verified by superconducting quantum simulations.
References in corpus (59)
- Probing many-body dynamics on a 51-atom quantum simulator
- Many body localization and thermalization in quantum statistical mechanics
- A bound on chaos
- QuTiP: An open-source Python framework for the dynamics of open quantum systems
- Relaxation in a Completely Integrable Many-Body Quantum System: An Ab Initio Study of the Dynamics of the Highly Excited States of Lattice Hard-Core Bosons
- Average Entropy of a Subsystem
- Black holes as mirrors: quantum information in random subsystems
- Quantum many-body systems out of equilibrium
- Quantum thermalization through entanglement in an isolated many-body system
- One dimensional Bosons: From Condensed Matter Systems to Ultracold Gases
- Fast Scramblers
- Many-body localization edge in the random-field Heisenberg chain
- Unbounded growth of entanglement in models of many-body localization
- Quantum many-body scars
- Quantum information processing with superconducting circuits: a review
- Programmable Quantum Simulations of Spin Systems with Trapped Ions
- Chaos in quantum channels
- Measuring out-of-time-order correlations and multiple quantum spectra in a trapped ion quantum magnet
- Qubit architecture with high coherence and fast tunable coupling
- Operator hydrodynamics, OTOCs, and entanglement growth in systems without conservation laws
- Direct observation of dynamical quantum phase transitions in an interacting many-body system
- Measuring out-of-time-order correlators on a nuclear magnetic resonance quantum simulator
- Strong and weak thermalization of infinite non-integrable quantum systems
- Verified Quantum Information Scrambling
- Effect of Rare Fluctuations on the Thermalization of Isolated Quantum Systems
- Discrete Time Crystals
- Ergodic dynamics and thermalization in an isolated quantum system
- Detecting bit-flip errors in a logical qubit using stabilizer measurements
- Emulating many-body localization with a superconducting quantum processor
- Digital quantum simulation of spin models with circuit quantum electrodynamics
- Classification of Interacting Topological Floquet Phases in One Dimension
- Out-of-time-ordered correlators in many-body localized systems
- Does scrambling equal chaos?
- Scrambling and entanglement spreading in long-range spin chains
- Information propagation in isolated quantum systems
- Out-of-time-order correlations in many-body localized and thermal phases
- Confined Quasiparticle Dynamics in Long-Range Interacting Quantum Spin Chains
- Probing the dynamical phase transition with a superconducting quantum simulator
- Exploring local quantum many-body relaxation by atoms in optical superlattices
- Observation of energy resolved many-body localization
- Out-of-Time-Order Correlation at a Quantum Phase Transition
- Characterizing Many-Body Localization by Out-of-Time-Ordered Correlation
- Digital Quantum Simulation of Spin Systems in Superconducting Circuits
- Dynamics of quantum information
- Universality in volume law entanglement of pure quantum states
- Scrambling of Quantum Information in Quantum Many-Body Systems
- Quantum chaos in the Brownian SYK model with large finite : OTOCs and tripartite information
- Signatures of the Many-body Localized Regime in Two Dimensions
- Quasiparticle explanation of "weak thermalization" regime under quench in a non-integrable quantum spin chain
- Connecting Entanglement in Time and Space: Improving the Folding Algorithm
- Detection of quantum phases via out-of-time-order correlators
- Dephasing-insensitive quantum information storage and processing with superconducting qubits
- Tripartite information, scrambling, and the role of Hilbert space partitioning in quantum lattice models
- Probing thermalization through spectral analysis with matrix product operators
- Out-of-time-order correlators and quantum phase transitions in the Rabi and Dicke model
- Dynamical Scaling Laws of Out-of-Time-Ordered Correlators
- Thermalization and its Breakdown for a Large Nonlinear Spin
- Chaos and relative entropy
- Measuring Holographic Entanglement Entropy on a Quantum Simulator
Cited by in corpus (9)
- Imaginary components of out-of-time correlators and information scrambling for navigating the learning landscape of a quantum machine learning model
- Quantifying information scrambling via Classical Shadow Tomography on Programmable Quantum Simulators
- Scrambling and Many-Body Localization in the XXZ-Chain
- Thermalization in Krylov Basis
- Quantum information scrambling in non-Markovian open quantum systems
- Krylov Complexity as a Probe for Chaos
- Dissipation induced information scrambling in a collision model
- Information Scrambling and the Correspondence of Entanglement- and Operator Dynamics in Systems with Nonlocal Interactions
- Coherence generation, symmetry algebras and Hilbert space fragmentation