Symmetric hypergraph states: Entanglement quantification and robust Bell nonlocality
Quantum Physics
2026-03-17 v2
Abstract
Quantum hypergraph states are the natural generalization of graph states. Here we investigate and analytically quantify entanglement and nonlocality for large classes of quantum hypergraph states. More specifically, we connect the geometric measure of entanglement of symmetric hypergraphs to their local Pauli stabilizers. As a result we recognize the resemblance between symmetric graph states and symmetric hypergraph states, which explains both, exponentially increasing violation of local realism for infinitely many classes of hypergraph states and its robustness towards particle loss.
Cite
@article{arxiv.2302.01695,
title = {Symmetric hypergraph states: Entanglement quantification and robust Bell nonlocality},
author = {Jan Nöller and Otfried Gühne and Mariami Gachechiladze},
journal= {arXiv preprint arXiv:2302.01695},
year = {2026}
}
Comments
39 pages, 4 figures, comments welcome