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Quantum cryptography in Minkowski space


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Title Quantum cryptography in Minkowski space
Title of Series The Annual Conference on Quantum Cryptography (QCRYPT) 2012
Number of Parts 30
Author Kent, Adrian
Contributors Centre for Quantum Technologies (CQT)
National University of Singapore (NUS)
License CC Attribution - NonCommercial - NoDerivatives 2.5 Switzerland:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.5446/36669
Publisher Eidgenössische Technische Hochschule (ETH) Zürich
Release Date 2012
Language English

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Subject Area Information technology
Abstract Quantum theory and the relativistic no-signalling principle both give ways of controlling information, in the sense that someone who creates information somewhere in space-time can rely on strict limits both on how much information another party can extract and on where they can obtain it. An increasingly long list of interesting cryptographic applications exploit the power of the no-signalling principle as well as the properties of quantum information. I describe recent work in this area, including secure protocols for bit commitment, quantum tagging (quantum position authentication) and new intrinsically relativistic cryptographic tasks.


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