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Continuous Variable Quantum Key Distribution: Finite-Key Analysis of Composable Security against Coherent Attacks
Fabian Furrer, Torsten Franz, Mario Berta +4
We provide a security analysis for continuous variable quantum key distribution protocols based on the transmission of squeezed vacuum states measured via homodyne detection. We em…
Quantum to Classical Randomness Extractors
Mario Berta, Omar Fawzi, Stephanie Wehner
The goal of randomness extraction is to distill (almost) perfect randomness from a weak source of randomness. When the source yields a classical string X, many extractor constructi…
Entanglement Cost of Quantum Channels
Mario Berta, Fernando Brandao, Matthias Christandl +1
The entanglement cost of a quantum channel is the minimal rate at which entanglement (between sender and receiver) is needed in order to simulate many copies of a quantum channel i…
The Smooth Entropy Formalism for von Neumann Algebras
Mario Berta, Fabian Furrer, Volkher B. Scholz
We discuss information-theoretic concepts on infinite-dimensional quantum systems. In particular, we lift the smooth entropy formalism as introduced by Renner and collaborators for…