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Temporal Steering and Security of Quantum Key Distribution with Mutually-unbiased Bases Against Individual Attacks by Bartkiewicz, Karol; Černoch, Antonín; Lemr, Karel; Miranowicz, Adam; Nori, Franco is a scholarly article available to read on EtoBox.

What is Temporal Steering and Security of Quantum Key Distribution with Mutually-unbiased Bases Against Individual Attacks about?

Temporal steering, which is a temporal analogue of Einstein-Podolsky-Rosen steering, refers to temporal quantum correlations between the initial and final state of a quantum system. Our analysis of temporal steering inequalities in relation to the average quantum bit error rates reveals the interplay between temporal steering and quantum cloning, which guarantees the security of quantum key-distribution based on mutually-unbiased bases against individual attacks. The key distributions analyzed here include the Bennett-Brassard 1984 protocol (BB84) and the six-state 1998 protocol by Bruss (B98). Moreover, we define a temporal steerable weight, which enables us to identify a kind of monogamy of temporal correlations that is essential to quantum cryptography and useful for analyzing various scenarios of quantum causality.

Author

Bartkiewicz, Karol; Černoch, Antonín; Lemr, Karel; Miranowicz, Adam; Nori, Franco

Published

2015

Language

EN