Topological quantum many-body scars in quantum dimer models on the kagome lattice

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 nonscar states c...

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Bibliographic Details
Published in:Physical review. B 2021-09, Vol.104 (12), p.1
Main Authors: Wildeboer, Julia, Seidel, Alexander, Srivatsa, N S, Nielsen, Anne E B, Erten, Onur
Format: Article
Language:English
Subjects:
Dimers
Eigenvectors
Entanglement
Kagome lattice
Scars
Thermalization (energy absorption)
Online Access:Get full text
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Summary: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 nonscar 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.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.104.L121103