Graphical Methods in Device-Independent Quantum Cryptography

Autor: Spencer Breiner, Carl A. Miller, Neil J. Ross
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Quantum, Vol 3, p 146 (2019)
Druh dokumentu: article
ISSN: 2521-327X
36954705
DOI: 10.22331/q-2019-05-27-146
Popis: 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.
Databáze: Directory of Open Access Journals