Dualization of ingappabilities through Hilbert-space extensions

Yuan Yao

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arXiv · 2409.01972

Dualization of ingappabilities through Hilbert-space extensions

Yuan Yao

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Abstract

Typical dualities in arbitrary dimensions are understood through a Hilbert-space extension method. By these results, we rigorously dualize the quantum ingappabilities to discrete height model in one dimension which is inaccessible by earlier work such as flux-insertion arguments. It turns out that the ingappabilities of quantum discrete height model is protected by an exotic "modulating" translation symmetry, which is a combination of modulating internal symmetry transformation and the conventional lattice translation. It can be also generalize to higher-form gauge fields in arbitrary dimensions, e.g., $\mathbb{Z}$-gauge theory in two dimensions with $\mathbb{Z}$ one-form symmetry and a modulating translation symmetry.

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Yuan Yao. 2024-09-03. Dualization of ingappabilities through Hilbert-space extensions. https://arxiv.org/abs/2409.01972

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