558 citations · 1.2k across the 5 of their papers we have counts for
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Optimality of Gaussian Attacks in Continuous Variable Quantum Cryptography
Miguel Navascues, Frederic Grosshans, Antonio Acin
We analyze the asymptotic security of the family of Gaussian modulated Quantum Key Distribution protocols for Continuous Variables systems. We prove that the Gaussian unitary attac…
Bounding the set of quantum correlations
Miguel Navascues, Stefano Pironio, Antonio Acin
We introduce a hierarchy of conditions necessarily satisfied by any distribution P(ab) representing the probabilities for two separate observers to obtain outcomes a and b when mak…
Security bounds for continuous variables quantum key distribution
Miguel Navascues, Antonio Acin
Security bounds for key distribution protocols using coherent and squeezed states and homodyne measurements are presented. These bounds refer to (i) general attacks and (ii) collec…
Single-Step Distillation Protocol with Generalized Beam Splitters
M. A. Martin-Delgado, M. Navascues
We develop a distillation protocol for multilevel qubits (qudits) using generalized beam splitters like in the proposal of Pan et al. for ordinary qubits. We find an acceleration w…
Distillation Protocols for Mixed States of Multilevel Qubits and the Quantum Renormalization Group
M. A. Martin-Delgado, M. Navascues
We study several properties of distillation protocols to purify multilevel qubit states (qudits) when applied to a certain family of initial mixed bipartite states. We find that it…