542 citations · 4.3k across the 54 of their papers we have counts for
5 papers · 1 filter
On experimental procedures for entanglement verification
S. J. van Enk, N. Lutkenhaus, H. J. Kimble
We give an overview of different types of entanglement that can be generated in experiments, as well as of various protocols that can be used to verify or quantify entanglement. We…
Zero-Error Attacks and Detection Statistics in the Coherent One-Way Protocol for Quantum Cryptography
Cyril Branciard, Nicolas Gisin, Norbert Lutkenhaus +1
This is a study of the security of the Coherent One-Way (COW) protocol for quantum cryptography, proposed recently as a simple and fast experimental scheme. In the zero-error regim…
Sequential attacks against differential-phase-shift quantum key distribution with weak coherent states
Marcos Curty, Lucy Liuxuan Zhang, Hoi-Kwong Lo +1
We investigate limitations imposed by sequential attacks on the performance of differential-phase-shift quantum key distribution protocols that use pulsed coherent light. In partic…
Witnessing effective entanglement in a continuous variable prepare&measure setup and application to a QKD scheme using postselection
S. Lorenz, J. Rigas, M. Heid +3
We report an experimental demonstration of effective entanglement in a prepare&measure type of quantum key distribution protocol. Coherent polarization states and heterodyne measur…
Binary projective measurement via linear optics and photon counting
Masahiro Takeoka, Masahide Sasaki, Norbert Lütkenhaus
We investigate the implementation of binary projective measurements with linear optics. This problem can be viewed as a single-shot discrimination of two orthogonal pure quantum st…