Graphical Methods in Device-Independent Quantum Cryptography

We introduce a framework for graphical security proofs in device-independent quantum cryptography using the methods of categorical quantum mechanics. We are optimistic that this approach will make some of the highly complex proofs in quantum cryptography more accessible, facilitate the discovery of...

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Main Authors: Spencer Breiner, Carl A. Miller, Neil J. Ross
Format: Article
Language:English
Published: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2019-05-01
Series:Quantum
Online Access:https://quantum-journal.org/papers/q-2019-05-27-146/pdf/
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author Spencer Breiner
Carl A. Miller
Neil J. Ross
author_facet Spencer Breiner
Carl A. Miller
Neil J. Ross
author_sort Spencer Breiner
collection DOAJ
description We introduce a framework for graphical security proofs in device-independent quantum cryptography using the methods of categorical quantum mechanics. We are optimistic that this approach will make some of the highly complex proofs in quantum cryptography more accessible, facilitate the discovery of new proofs, and enable automated proof verification. As an example of our framework, we reprove a previous result from device-independent quantum cryptography: any linear randomness expansion protocol can be converted into an unbounded randomness expansion protocol. We give a graphical proof of this result, and implement part of it in the Globular proof assistant.
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spelling doaj.art-3695470555334b05890b24d7b0c9b5f42022-12-21T20:38:03ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2019-05-01314610.22331/q-2019-05-27-14610.22331/q-2019-05-27-146Graphical Methods in Device-Independent Quantum CryptographySpencer BreinerCarl A. MillerNeil J. RossWe introduce a framework for graphical security proofs in device-independent quantum cryptography using the methods of categorical quantum mechanics. We are optimistic that this approach will make some of the highly complex proofs in quantum cryptography more accessible, facilitate the discovery of new proofs, and enable automated proof verification. As an example of our framework, we reprove a previous result from device-independent quantum cryptography: any linear randomness expansion protocol can be converted into an unbounded randomness expansion protocol. We give a graphical proof of this result, and implement part of it in the Globular proof assistant.https://quantum-journal.org/papers/q-2019-05-27-146/pdf/
spellingShingle Spencer Breiner
Carl A. Miller
Neil J. Ross
Graphical Methods in Device-Independent Quantum Cryptography
Quantum
title Graphical Methods in Device-Independent Quantum Cryptography
title_full Graphical Methods in Device-Independent Quantum Cryptography
title_fullStr Graphical Methods in Device-Independent Quantum Cryptography
title_full_unstemmed Graphical Methods in Device-Independent Quantum Cryptography
title_short Graphical Methods in Device-Independent Quantum Cryptography
title_sort graphical methods in device independent quantum cryptography
url https://quantum-journal.org/papers/q-2019-05-27-146/pdf/
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