A Profunctorial Semantics for Quantum Supermaps - Laboratoire Méthodes Formelles
Communication Dans Un Congrès Année : 2024

A Profunctorial Semantics for Quantum Supermaps

James Hefford
  • Fonction : Auteur
  • PersonId : 1421950
Matt Wilson
  • Fonction : Auteur
  • PersonId : 1421951

Résumé

We identify morphisms of strong profunctors as a categorification of quantum supermaps. These black-box generalisations of diagrams-with-holes are hence placed within the broader field of profunctor optics, as morphisms in the category of copresheaves on concrete networks. This enables the first construction of abstract logical connectives such as tensor products and negations for supermaps in a totally theory-independent setting. These logical connectives are found to be all that is needed to abstractly model the key structural features of the quantum theory of supermaps: black-box indefinite causal order, black-box definite causal order, and the factorisation of definitely causally ordered supermaps into concrete circuit diagrams. We demonstrate that at the heart of these factorisation theorems lies the Yoneda lemma and the notion of representability.
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Dates et versions

hal-04720947 , version 1 (04-10-2024)

Identifiants

Citer

James Hefford, Matt Wilson. A Profunctorial Semantics for Quantum Supermaps. LICS 2024 - 39th Annual ACM/IEEE Symposium on Logic in Computer Science, Jul 2024, Tallinn, Estonia. pp.43, ⟨10.1145/3661814.3662123⟩. ⟨hal-04720947⟩
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