As quantum key distribution becomes a mature technology, it appears clearly that some
assumptions made in the security proofs cannot be justified in practical implementations …

We address security of the quantum key distribution scheme based on the noisy modulation
of coherent states and investigate how it is robust against noise in the modulation regardless …

Establishing an information-theoretic secret key between two parties using a quantum key
distribution (QKD) system is only possible when an accurate characterization of the quantum …

The use of linearly independent signal states in realistic implementations of quantum key
distribution (QKD) enables an eavesdropper to perform unambiguous state discrimination …

Quantum key distribution (QKD) is the first quantum information task to reach the level of
mature technology, already fit for commercialization. It aims at the creation of a secret key …

We present a complete protocol for BB84 quantum key distribution for a realistic setting
(noise, loss, multi-photon signals of the source) that covers many of todays experimental …

I prove the security of quantum key distribution against individual attacks for realistic signals
sources, including weak coherent pulses and down-conversion sources. The proof applies …

We propose the continuous-variable quantum key distribution protocol based on the
Gaussian modulation of a single quadrature of the coherent states of light, which is aimed to …

Quantum key distribution can be performed with practical signal sources such as weak
coherent pulses. One example of such a scheme is the Bennett-Brassard protocol that can …

Continuous-variable quantum key distribution protocols have been implemented recently,
based on Gaussian modulation of the quadratures of coherent states. A present limitation of …