Search Results - "Hefford, James"

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  1. 1

    Optimal local unitary encoding circuits for the surface code by Higgott, Oscar, Wilson, Matthew, Hefford, James, Dborin, James, Hanif, Farhan, Burton, Simon, Browne, Dan E.

    Published in Quantum (Vienna, Austria) (05-08-2021)
    “…The surface code is a leading candidate quantum error correcting code, owing to its high threshold, and compatibility with existing experimental architectures…”
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    Journal Article
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    A Profunctorial Semantics for Quantum Supermaps by Hefford, James, Wilson, Matt

    Published 23-05-2024
    “…We identify morphisms of strong profunctors as a categorification of quantum supermaps. These black-box generalisations of diagrams-with-holes are hence placed…”
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    Journal Article
  9. 9

    Optics for Premonoidal Categories by Hefford, James, Román, Mario

    Published 14-12-2023
    “…EPTCS 397, 2023, pp. 152-171 We further the theory of optics or "circuits-with-holes" to encompass premonoidal categories: monoidal categories without the…”
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    Journal Article
  10. 10

    On the Pre- and Promonoidal Structure of Spacetime by Hefford, James, Kissinger, Aleks

    Published 31-07-2023
    “…EPTCS 380, 2023, pp. 284-306 The notion of a joint system, as captured by the monoidal (a.k.a. tensor) product, is fundamental to the compositional,…”
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    Journal Article
  11. 11

    CPM Categories for Galois Extensions by Hefford, James, Gogioso, Stefano

    Published 13-09-2021
    “…EPTCS 343, 2021, pp. 165-192 By considering a generalisation of the CPM construction, we develop an infinite hierarchy of probabilistic theories, exhibiting…”
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    Journal Article
  12. 12

    Hyper-decoherence in Density Hypercubes by Hefford, James, Gogioso, Stefano

    Published 06-09-2021
    “…EPTCS 340, 2021, pp. 141-159 We study hyper-decoherence in three operational theories from the literature, all examples of the recently introduced higher-order…”
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    Journal Article
  13. 13

    Coend Optics for Quantum Combs by Hefford, James, Comfort, Cole

    Published 31-07-2023
    “…EPTCS 380, 2023, pp. 63-76 We compare two possible ways of defining a category of 1-combs, the first intensionally as coend optics and the second extensionally…”
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    Journal Article
  14. 14

    The Produoidal Algebra of Process Decomposition by Earnshaw, Matt, Hefford, James, Román, Mario

    Published 27-01-2023
    “…We introduce the normal produoidal category of monoidal contexts over an arbitrary monoidal category. In the same sense that a monoidal morphism represents a…”
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  15. 15

    Categories of Semantic Concepts by Hefford, James, Wang, Vincent, Wilson, Matthew

    Published 22-04-2020
    “…Modelling concept representation is a foundational problem in the study of cognition and linguistics. This work builds on the confluence of conceptual tools…”
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  16. 16

    The Safari of Update Structures: Visiting the Lens and Quantum Enclosures by Wilson, Matthew, Hefford, James, Boisseau, Guillaume, Wang, Vincent

    Published 26-01-2021
    “…EPTCS 333, 2021, pp. 1-18 We build upon our recently introduced concept of an update structure to show that it is a generalisation of very-well-behaved lenses,…”
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    Journal Article
  17. 17

    Optimal local unitary encoding circuits for the surface code by Higgott, Oscar, Wilson, Matthew, Hefford, James, Dborin, James, Hanif, Farhan, Burton, Simon, Browne, Dan E

    Published 06-08-2021
    “…Quantum 5, 517 (2021) The surface code is a leading candidate quantum error correcting code, owing to its high threshold, and compatibility with existing…”
    Get full text
    Journal Article