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 prove the unconditional security of a quantum key distribution protocol in which bit
values are encoded in the phase of a weak coherent-state pulse relative to a strong …

We provide limits to practical quantum key distribution, taking into account channel losses, a
realistic detection process, and imperfections in the “qubits” sent from the sender to the …

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 …

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 propose a decoy-pulse method to overcome the photon-number-splitting attack for
Bennett-Brassard 1984 quantum key distribution protocol in the presence of high loss: A …

We prove the security of the Bennett-Brassard (BB84) quantum key distribution protocol in
the case where the key information is encoded in the relative phase of a coherent-state …

Abstract Christandl et al (2009 Phys. Rev. Lett. 102 020504) provide, in particular, the
possibility of studying unconditional security in the finite-key regime for all discrete-variable …

We consider the security of the Bennett-Brassard 1984 protocol for quantum key distribution,
with arbitrary individual imperfections simultaneously in the source and detectors. We …

We present and demonstrate a new protocol for practical quantum cryptography, tailored for
an implementation with weak coherent pulses to obtain a high key generation rate. The key …