Calibrated hypergraph states: I calibrated hypergraph and multi qudit state monads

TL;DR

This paper introduces a categorical framework using graded Omega monads to model calibrated hypergraph states and multi qudit states, laying the groundwork for their systematic study and potential applications in quantum information.

Contribution

It develops a novel categorical approach with graded Omega monads to formalize calibrated hypergraph and multi qudit states, enabling structured analysis.

Findings

Calibrated hypergraph states organize within graded Omega monads.

Multi qudit states also naturally form graded Omega monads.

Foundation laid for constructing hypergraph state maps as monad morphisms.

Abstract

Hypergraph states are a special kind of multipartite states encoded by hypergraphs. They play a significant role in quantum error correction, measurement--based quantum computation, quantum non locality and entanglement. In a series of two papers, we introduce and study calibrated hypergraph states, a broad generalization of weighted hypergraph states codified by hypergraphs equipped with calibrations, an ample extension of weightings. We propose as a guiding principle that a constructive theory of hypergraph states must be based on a categorical framework for hypergraphs on one hand and multi qudit states on the other constraining hypergraph states enough to render the determination of their general structure possible. In this first paper, we introduce graded $\varOmega$ monads, concrete Pro categories isomorphic to the Pro category $\varOmega$ of finite von Neumann ordinals and equipped with an associative and unital graded multiplication, and their morphisms, maps of $\varOmega$ monads compatible with their monadic structure. We then show that both calibrated hypergraphs and multi qudit states naturally organize in graded $\varOmega$ monads. In this way, we lay the foundation for the construction of calibrated hypergraph state map as a special morphism of these $\varOmega$ monads in the companion paper.