Generalised Process Theories

Fuente: arXiv
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Auteurs principaux: Selby, John H., Stasinou, Maria E., Wilson, Matt, Coecke, Bob
Format: Preprint
Publié: 2025
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author Selby, John H.
Stasinou, Maria E.
Wilson, Matt
Coecke, Bob
author_facet Selby, John H.
Stasinou, Maria E.
Wilson, Matt
Coecke, Bob
contents Process theories provide a powerful framework for describing compositional structures across diverse fields, from quantum mechanics to computational linguistics. Traditionally, they have been formalized using symmetric monoidal categories (SMCs). However, various generalizations, including time-neutral, higher-order, and enriched process theories, do not naturally conform to this structure. In this work, we propose an alternative formalization using operad algebras, motivated by recent results connecting SMCs to operadic structures, which captures a broader class of process theories. By leveraging the string-diagrammatic language, we provide an accessible yet rigorous formulation that unifies and extends traditional process-theoretic approaches. Our operadic framework not only recovers standard process theories as a special case but also enables new insights into quantum foundations and compositional structures. This work paves the way for further investigations into the algebraic and operational properties of generalised process theories within an operadic setting.
format Preprint
id arxiv_https___arxiv_org_abs_2502_10368
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Generalised Process Theories
Selby, John H.
Stasinou, Maria E.
Wilson, Matt
Coecke, Bob
Category Theory
Mathematical Physics
Quantum Physics
Process theories provide a powerful framework for describing compositional structures across diverse fields, from quantum mechanics to computational linguistics. Traditionally, they have been formalized using symmetric monoidal categories (SMCs). However, various generalizations, including time-neutral, higher-order, and enriched process theories, do not naturally conform to this structure. In this work, we propose an alternative formalization using operad algebras, motivated by recent results connecting SMCs to operadic structures, which captures a broader class of process theories. By leveraging the string-diagrammatic language, we provide an accessible yet rigorous formulation that unifies and extends traditional process-theoretic approaches. Our operadic framework not only recovers standard process theories as a special case but also enables new insights into quantum foundations and compositional structures. This work paves the way for further investigations into the algebraic and operational properties of generalised process theories within an operadic setting.
title Generalised Process Theories
topic Category Theory
Mathematical Physics
Quantum Physics
url https://arxiv.org/abs/2502.10368