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Dagger Compact Closed Categories and Completely Positive Maps

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Selinger, Peter·2007·Electronic Notes in Theoretical Computer Science

Abstract

Dagger compact closed categories were recently introduced by Abramsky and Coecke, under the name “strongly compact closed categories”, as an axiomatic framework for quantum mechanics. We present a graphical language for dagger compact closed categories, and sketch a proof of its completeness for equational reasoning. We give a general construction, the CPM construction, which associates to each dagger compact closed category its “category of completely positive maps”, and we show that the resulting category is again dagger compact closed. We apply these ideas to Abramsky and Coecke's interpretation of quantum protocols, and to D'Hondt and Panangaden's predicate transformer semantics.

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Metadata

Authors
Selinger, P.
Venue
Electronic Notes in Theoretical Computer Science
Publisher
Elsevier BV
Published
2007-03
Volume
170
Pages
139-163
ISSN
1571-0661 (ISSN-L)
OpenAlex
W1982928587
Cited by
390
References
10
FWCI
27.58
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Dagger Compact Closed Categories and Completely Positive Maps. https://app.cochat.ai/papers/10.1016/j.entcs.2006.12.018
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Selinger, P. (2007). Dagger Compact Closed Categories and Completely Positive Maps. Electronic Notes in Theoretical Computer Science. https://doi.org/10.1016/j.entcs.2006.12.018

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.