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Unconditionally secure device-independent quantum key distribution with only two devices
Jonathan Barrett, Roger Colbeck, Adrian Kent
Device-independent quantum key distribution is the task of using uncharacterized quantum devices to establish a shared key between two users. If a protocol is secure regardless of…
Security Details for Bit Commitment by Transmitting Measurement Outcomes
Sarah Croke, Adrian Kent
We spell out details of a simple argument for a security bound for the secure relativistic quantum bit commitment protocol of Ref. [1].
Secure and Robust Transmission and Verification of Unknown Quantum States in Minkowski Space
Adrian Kent, Serge Massar, Jonathan Silman
An important class of cryptographic applications of relativistic quantum information work as follows. B generates a random qudit and supplies it to A at point P. A is supposed to t…
Fundamental quantum optics experiments conceivable with satellites -- reaching relativistic distances and velocities
David Rideout, Thomas Jennewein, Giovanni Amelino-Camelia +14
Physical theories are developed to describe phenomena in particular regimes, and generally are valid only within a limited range of scales. For example, general relativity provides…
Quantum Tasks in Minkowski Space
Adrian Kent
The fundamental properties of quantum information and its applications to computing and cryptography have been greatly illuminated by considering information-theoretic tasks that a…
Beable-Guided Quantum Theories: Generalising Quantum Probability Laws
Adrian Kent
We introduce the idea of a {\it beable-guided quantum theory}. Beable-guided quantum theories (BGQT) are generalisations of quantum theory, inspired by Bell's concept of beables. T…