arXiv:1902.02259 · Physical review. B./Physical review. B

Entanglement and spectra in topological many-body localized phases

Kevin S.C. Decker, Dante Marvin Kennes, Jens Eisert, Christoph Karrasch

Published Jan 24, 2020• 8 citations

Abstract

Many-body localized systems in which interactions and disorder come together defy the expectations of quantum statistical mechanics: In contrast to ergodic systems, they do not thermalize when undergoing nonequilibrium dynamics. What is less clear, however, is how topological features interplay with many-body localized phases as well as the nature of the transition between a topological and a trivial state within the latter. In this paper, we numerically address these questions using a combination of extensive tensor network calculations, specifically density matrix renormalization-group-X, as well as exact diagonalization, leading to a comprehensive characterization of Hamiltonian spectra and eigenstate entanglement properties.

DOI: 10.1103/physrevb.101.014208

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