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Journal Article

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

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Srivatsa,  N.S.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Nielsen,  Anne E. B.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Wildeboer, J., Seidel, A., Srivatsa, N., Nielsen, A. E. B., & Erten, O. (2021). Topological quantum many-body scars in quantum dimer models on the kagome lattice. Physical Review B, 104(12): L121103. doi:10.1103/PhysRevB.104.L121103.


Cite as: https://hdl.handle.net/21.11116/0000-0009-4C2B-3
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 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.