6 citations
5 papers · 1 filter
Photon bunching in parametric down-conversion with continuous wave excitation
Bibiane Blauensteiner, Isabelle Herbauts, Stefano Bettelli +2
The first direct measurement of photon bunching (g2 correlation function) in one output arm of a spontaneous-parametric-down-conversion source operated with a continuous pump laser…
A Novel Attack Strategy on Entanglement Swapping QKD Protocols
Stefan Schauer, Martin Suda
Li et al. presented a protocol [Int. Journal of Quantum Information, Vol. 4, No. 6 (2006) 899-906] for quantum key distribution based on entanglement swapping. In this protocol the…
High-fidelity transmission of polarization encoded qubits from an entangled source over 100 km of fiber
Hannes Hübel, Michael R. Vanner, Thomas Lederer +4
We demonstrate non-degenerate down-conversion at 810 and 1550 nm for long-distance fiber based quantum communication using polarization entangled photon pairs. Measurements of the…
On the optimality of individual entangling-probe attacks against BB84 quantum key distribution
I. Herbauts, S. Bettelli, H. Hübel +1
It is shown that an existing method to study ideal individual attacks on the BB84 QKD protocol using error discard can be adapted to reconciliation with error correction, and that…
A Novel Protocol-Authentication Algorithm Ruling Out a Man-in-the-Middle Attack in Quantum Cryptography
M. Peev, M. Nölle, O. Maurhardt +6
In this work we review the security vulnerability of Quantum Cryptography with respect to "man-in-the-middle attacks" and the standard authentication methods applied to counteract…