Browsing Department of Materials Science and Metallurgy by Subject "quantum information"
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Quantum communication complexity advantage implies violation of a Bell inequality
(National Academy of SciencesProceedings of the National Academy of Sciences, 2016-03-08)We obtain a general connection between a large quantum advantage in communication complexity and Bell non-locality. We show that given any protocol offering a sufficiently large quantum advantage in communication complexity, ...
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Second-Order Asymptotics of Visible Mixed Quantum Source Coding via Universal Codes
(IEEEIEEE Transactions on Information Theory, 2016-05-23)The simplest example of a quantum information source with memory is a mixed source, which emits signals entirely from one of two memoryless quantum sources with given $\textit{a priori}$ probabilities. Considering a mixed ...