Unveiling dynamical quantum error correcting codes via non-invertible symmetries

Fuente: arXiv
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Autori principali: Radhakrishnan, Rajath, Sharon, Adar, Tantivasadakarn, Nathanan
Natura: Preprint
Pubblicazione: 2025
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author Radhakrishnan, Rajath
Sharon, Adar
Tantivasadakarn, Nathanan
author_facet Radhakrishnan, Rajath
Sharon, Adar
Tantivasadakarn, Nathanan
contents Dynamical stabilizer codes (DSCs) have recently emerged as a powerful generalization of static stabilizer codes for quantum error correction, replacing a fixed stabilizer group with a sequence of non-commuting measurements. This dynamical structure unlocks new possibilities for fault tolerance but also introduces new challenges, as errors must now be tracked across both space and time. In this work, we provide a physical and topological understanding of DSCs by establishing a correspondence between qudit Pauli measurements and non-invertible symmetries in 4+1-dimensional 2-form gauge theories. Sequences of measurements in a DSC are mapped to a fusion of the operators implementing these non-invertible symmetries. We show that the error detectors of a DSC correspond to endable surface operators in the gauge theory, whose endpoints define line operators, and that detectable errors are precisely those surface operators that braid non-trivially with these lines. Finally, we demonstrate how this framework naturally recovers the spacetime stabilizer code associated with a DSC.
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id arxiv_https___arxiv_org_abs_2510_09565
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Unveiling dynamical quantum error correcting codes via non-invertible symmetries
Radhakrishnan, Rajath
Sharon, Adar
Tantivasadakarn, Nathanan
High Energy Physics - Theory
Strongly Correlated Electrons
Mathematical Physics
Quantum Physics
Dynamical stabilizer codes (DSCs) have recently emerged as a powerful generalization of static stabilizer codes for quantum error correction, replacing a fixed stabilizer group with a sequence of non-commuting measurements. This dynamical structure unlocks new possibilities for fault tolerance but also introduces new challenges, as errors must now be tracked across both space and time. In this work, we provide a physical and topological understanding of DSCs by establishing a correspondence between qudit Pauli measurements and non-invertible symmetries in 4+1-dimensional 2-form gauge theories. Sequences of measurements in a DSC are mapped to a fusion of the operators implementing these non-invertible symmetries. We show that the error detectors of a DSC correspond to endable surface operators in the gauge theory, whose endpoints define line operators, and that detectable errors are precisely those surface operators that braid non-trivially with these lines. Finally, we demonstrate how this framework naturally recovers the spacetime stabilizer code associated with a DSC.
title Unveiling dynamical quantum error correcting codes via non-invertible symmetries
topic High Energy Physics - Theory
Strongly Correlated Electrons
Mathematical Physics
Quantum Physics
url https://arxiv.org/abs/2510.09565