Stability of invertible, frustration-free ground states against large perturbations

A gapped ground state of a quantum spin system has a natural length scale set by the gap. This length scale governs the decay of correlations. A common intuition is that this length scale also controls the spatial relaxation towards the ground state away from impurities or boundaries. The aim of thi...

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Bibliographic Details
Main Authors: Sven Bachmann, Wojciech De Roeck, Brecht Donvil, Martin Fraas
Format: Article
Language:English
Published: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2022-09-01
Series:Quantum
Online Access:https://quantum-journal.org/papers/q-2022-09-08-793/pdf/