Boundary and Symmetry Breaking in a Deformed Toric Code

Fuente: arXiv
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Autor principal: Corso, Rodrigo
Formato: Preprint
Publicado: 2026
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author Corso, Rodrigo
author_facet Corso, Rodrigo
contents This work explores a deformation of the Kitaev toric code that induces a phase transition out of the topologically ordered phase. By placing the model on a cylinder, the bulk global 1-form symmetries separate into distinct boundary operators, allowing us to show that the transition is accompanied by the breaking of one higher-form symmetry. Using a holographic $(1+1)$-dimensional boundary Hamiltonian, we extract an effective central charge and find a pronounced suppression near $β_c$, followed by its restoration at strong coupling, indicating sensitivity to bulk criticality rather than topological order.
format Preprint
id arxiv_https___arxiv_org_abs_2602_04002
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Boundary and Symmetry Breaking in a Deformed Toric Code
Corso, Rodrigo
Strongly Correlated Electrons
High Energy Physics - Theory
This work explores a deformation of the Kitaev toric code that induces a phase transition out of the topologically ordered phase. By placing the model on a cylinder, the bulk global 1-form symmetries separate into distinct boundary operators, allowing us to show that the transition is accompanied by the breaking of one higher-form symmetry. Using a holographic $(1+1)$-dimensional boundary Hamiltonian, we extract an effective central charge and find a pronounced suppression near $β_c$, followed by its restoration at strong coupling, indicating sensitivity to bulk criticality rather than topological order.
title Boundary and Symmetry Breaking in a Deformed Toric Code
topic Strongly Correlated Electrons
High Energy Physics - Theory
url https://arxiv.org/abs/2602.04002