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    k-uniform complete hypergraph-state stabilizers in terms of local operators

    Gabriel M. Arantes1,*, Vinícius Salem2,†, Danilo Cius1,‡, and Barbara Amaral1,3,§

    • 1Department of Mathematical Physics, Institute of Physics, University of São Paulo, Rua do Matão 1371, São Paulo 05508-090, São Paulo, Brazil
    • 2Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, 47011 Valladolid, Spain
    • 3Department of Chemistry and Centre for Quantum Information and Quantum Control, University of Toronto, 80 Saint George St., Toronto, Ontario M5S 3H6, Canada

    • *Contact author: gabriel.moniz@usp.br
    • †Contact author: vinicius.salem@uva.es
    • ‡Contact author: danilocius@gmail.com
    • §Contact author: bamaral@if.usp.br

    Phys. Rev. A 113, 052417 – Published 7 May, 2026

    DOI: https://doi.org/10.1103/ykj9-8gwj

    Abstract

    In this work, we introduce a method to express the stabilizer of a k-uniform complete hypergraph state as a linear combination of local operators. Quantum hypergraph states generalize graph states and exhibit properties that are not shared by their graph counterparts—most notably, their stabilizers are intrinsically nonlocal, as hyperedges can involve arbitrary subsets of vertices. Our formulation provides an explicit description of the stabilizers for k-uniform complete hypergraphs and may offer insights for exploring these states within the stabilizer formalism. In particular, this approach could facilitate the construction of new Bell inequalities or find applications in quantum error correction.

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