389 citations · 874 across the 7 of their papers we have counts for
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Implementation of Continuous-Variable Quantum Key Distribution with Composable and One-Sided-Device-Independent Security Against Coherent Attacks
Tobias Gehring, Vitus Händchen, Jörg Duhme +5
Secret communication over public channels is one of the central pillars of a modern information society. Using quantum key distribution this is achieved without relying on the hard…
Observation of one-way Einstein-Podolsky-Rosen steering
Vitus Händchen, Tobias Eberle, Sebastian Steinlechner +4
The distinctive non-classical features of quantum physics were first discussed in the seminal paper by A. Einstein, B. Podolsky and N. Rosen (EPR) in 1935. In his immediate respons…
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…
Gaussian Entanglement for Quantum Key Distribution from a Single-Mode Squeezing Source
Tobias Eberle, Vitus Händchen, Jörg Duhme +4
We report the suitability of an Einstein-Podolsky-Rosen (EPR) entanglement source for gaussian continuous-variable quantum key distribution at 1550 nm. Our source is based on a sin…
Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source
Tobias Eberle, Vitus Händchen, Jörg Duhme +3
Einstein-Podolsky-Rosen (EPR) entanglement is a criterion that is more demanding than just certifying entanglement. We theoretically and experimentally analyze the low resource gen…
Extremal Quantum Correlations and Cryptographic Security
T. Franz, F. Furrer, R. F. Werner
We investigate a fundamental property of device independent security in quantum cryptography by characterizing probability distributions which are necessarily independent of the me…
Quantum cryptography as a retrodiction problem
A. H. Werner, T. Franz, R. F. Werner
We propose a quantum key distribution protocol based on a quantum retrodiction protocol, known as the Mean King problem. The protocol uses a two way quantum channel. We show securi…
A universally programmable Quantum Cellular Automaton
D. J. Shepherd, T. Franz, R. F. Werner
We discuss the role of classical control in the context of reversible quantum cellular automata. Employing the structure theorem for quantum cellular automata, we give a general co…