Topological Quantum Many-Body Scars in Quantum Dimer Models on the Kagome Lattice

Abstract

We present a class of quantum dimer models on the kagome lattice with full translational invariance that feature a quantum many-body scar state of analytically known entanglement properties within their spectra. Using exact diagonalization on lattices of up to 60 sites, we show that non-scar states conform to the eigenstate thermalization hypothesis. Specifically, we show that energies are distributed according to the Gaussian ensemble expected of their respective symmetry sector, illustrate the existence of the scar from bipartite entanglement properties, and demonstrate revival phenomena in studies of fidelity dynamics.

published version; analysis of fidelity dynamics added

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Cited by in corpus (24)

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• Anomalous hydrodynamics in a class of scarred frustration-free Hamiltonians
• Rainbow Scars: From Area to Volume Law
• Extensive multipartite entanglement from su(2) quantum many-body scars
• Scars from protected zero modes and beyond in $U(1)$ quantum link and quantum dimer models
• Driving quantum many-body scars in the PXP model
• Exact Quantum Scars in the Chiral Non-Linear Luttinger Liquid
• Deformed Symmetry Structures and Quantum Many-body Scar Subspaces
• Quantum Many-Body Scars from Einstein-Podolsky-Rosen States in Bilayer Systems
• Height-conserving quantum dimer models
• Motif magnetism and quantum many-body scars
• Quantum many-body scars of spinless fermions with density-assisted hopping in higher dimensions
• Strong Hilbert space fragmentation via emergent quantum drums in two dimensions
• Stability of scar states in 2D PXP model against random disorders
• Tower of two-dimensional scar states in a localized system
• Stabilizer Scars
• Quantum Scar States in Coupled Random Graph Models
• Hilbert space fragmentation from lattice geometry
• Symmetric tensor scars with tunable entanglement from volume to area law
• Geometric fragmentation and anomalous thermalization in cubic dimer model
• Real space thermalization of locally driven quantum magnets