Exact projected entangled pair ground states with topological Euler invariant

Abstract We report on a class of gapped projected entangled pair states (PEPS) with non-trivial Euler topology motivated by recent progress in band geometry. In the non-interacting limit, these systems have optimal conditions relating to saturation of quantum geometrical bounds, allowing for parent...

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Bibliographic Details
Main Authors: Thorsten B. Wahl, Wojciech J. Jankowski, Adrien Bouhon, Gaurav Chaudhary, Robert-Jan Slager
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-024-55484-4
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