CPM Categories for Galois Extensions

• URL: http://arxiv.org/abs/2106.01209v2
• Date: Mon, 13 Sep 2021 00:49:59 GMT
• Title: CPM Categories for Galois Extensions
• Authors: James Hefford (University of Oxford), Stefano Gogioso (University of Oxford)
• Abstract summary: We develop an infinite hierarchy of probabilistic theories, exhibiting compositional decoherence structures. These decoherences reduce the degrees of freedom in physical systems, while at the same time restricting the fields over which the systems are defined. These theories possess fully fledged operational semantics, allowing both categorical and GPT-style approaches to their study.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: By considering a generalisation of the CPM construction, we develop an infinite hierarchy of probabilistic theories, exhibiting compositional decoherence structures which generalise the traditional quantum-to-classical transition. Analogously to the quantum-to-classical case, these decoherences reduce the degrees of freedom in physical systems, while at the same time restricting the fields over which the systems are defined. These theories possess fully fledged operational semantics, allowing both categorical and GPT-style approaches to their study.

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