Pair localization in dipolar systems with tunable positional disorder
arXiv:2207.14474 · doi:10.1103/PhysRevB.106.134212
Abstract
Strongly interacting quantum systems subject to quenched disorder exhibit intriguing phenomena such as glassiness and many-body localization. Theoretical studies have mainly focused on disorder in the form of random potentials, while many experimental realizations naturally feature disorder in the interparticle interactions. Inspired by cold Rydberg gases, where such disorder can be engineered using the dipole blockade effect,we study a Heisenberg XXZ spin model where the disorder is exclusively due to random spin-spin couplings, arising from power-law interactions between randomly positioned spins. Using established spectral and eigenstate properties and entanglement entropy, we show that this system exhibits a localization crossover and identify strongly interacting pairs as emergent local conserved quantities in the system, leading to an intuitive physical picture consistent with our numerical results.
arXiv comment10 pages, 6 main figures, 1 supplementary figure, close to published version
References in corpus (57)
- Chaos and Quantum Thermalization
- Area laws for the entanglement entropy - a review
- Many body localization and thermalization in quantum statistical mechanics
- From Quantum Chaos and Eigenstate Thermalization to Statistical Mechanics and Thermodynamics
- Localization of interacting fermions at high temperature
- Many-body localization, thermalization, and entanglement
- Observation of many-body localization of interacting fermions in a quasi-random optical lattice
- Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
- Many-body localization edge in the random-field Heisenberg chain
- The distribution of the ratio of consecutive level spacings in random matrix ensembles
- Equilibration, thermalisation, and the emergence of statistical mechanics in closed quantum systems
- Many body localization in Heisenberg XXZ magnet in a random field
- Phenomenology of fully many-body-localized systems
- A phenomenology of certain many-body-localized systems
- Local conservation laws and the structure of the many-body localized states
- Many-body localization in a quantum simulator with programmable random disorder
- Many-body localization in a disordered quantum Ising chain
- Eigenstate Thermalization Hypothesis
- Schrieffer-Wolff transformation for quantum many-body systems
- Probing entanglement in a many-body-localized system
- Stability and instability towards delocalization in MBL systems
- Coupling Identical 1D Many-Body Localized Systems
- Theory of the many-body localization transition in one dimensional systems
- Recent progress in many-body localization
- Universal properties of many-body delocalization transitions
- Avalanches and many-body resonances in many-body localized systems
- Disorder-induced Localization in a Strongly Correlated Atomic Hubbard Gas
- A criterion for many-body localization-delocalization phase transition
- Exploring Localization in Nuclear Spin Chains
- Multifractal Scalings across the Many-Body Localization Transition
- Many-body Localization with Dipoles
- The Hilbert-glass transition: new universality of temperature-tuned many-body dynamical quantum criticality
- Critical Properties of the Many-Body Localization Transition
- Distinguishing localization from chaos: challenges in finite-size systems
- How a small quantum bath can thermalize long localized chains
- Many-body delocalization as a quantum avalanche
- Critical thermalization of a disordered dipolar spin system in diamond
- Thouless energy and multifractality across the many-body localization transition
- Polynomially filtered exact diagonalization approach to many-body localization
- Adiabatic eigenstate deformations as a sensitive probe for quantum chaos
- Markovian baths and quantum avalanches
- Many-Body Delocalization in Strongly Disordered System with Long-Range Interactions: Finite Size Scaling
- Quantum criticality of hot random spin chains
- Many body localization with long range interactions
- Relaxation of an isolated dipolar-interacting Rydberg quantum spin system
- Glassy dynamics in a disordered Heisenberg quantum spin system
- Particle-hole symmetry, many-body localization, and topological edge modes
- Multifractality and its role in anomalous transport in the disordered XXZ spin-chain
- Quantum dynamics of disordered spin chains with power-law interactions
- Thermal inclusions: how one spin can destroy a many-body localized phase
- Self-consistent theory of many-body localisation in a quantum spin chain with long-range interactions
- Many-body localization transition in large quantum spin chains: The mobility edge
- Non-Abelian symmetries and disorder: a broad non-ergodic regime and anomalous thermalization
- Many-body localization in XY spin chains with long-range interactions: An exact diagonalization study
- Many-body localization transition in a frustrated XY chain
- Strong Disorder Renormalization for the dynamics of Many-Body-Localized systems : iterative elimination of the fastest degree of freedom via the Floquet expansion
- Excited-Eigenstate Entanglement Properties of XX Spin Chains with Random Long-Range Interactions
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