Quantum key distribution (QKD) using weak coherent states and homodyne detection is a
promising candidate for practical quantum‐cryptographic implementations due to its …

The science of quantum information has arisen over the last two decades centered on the
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …

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 …

The ability to distribute secret keys between two parties with information-theoretic security,
that is regardless of the capacities of a malevolent eavesdropper, is one of the most …

Quantum secure direct communication (QSDC) is a unique technique, which supports the
secure transmission of confidential information directly through a quantum channel without …

We establish a lower bound on the asymptotic secret key rate of continuous-variable
quantum key distribution with a discrete modulation of coherent states. The bound is valid …

Continuous-variable quantum key distribution (CV QKD) protocols with discrete modulation
are interesting due to their experimental simplicity and their great potential for massive …

The security proofs of continuous-variable quantum key distribution are based on the
assumptions that the eavesdropper can neither act on the local oscillator nor control Bob's …

The goal of this paper is to extend the framework of finite-size analysis recently developed
for quantum key distribution to continuous-variable protocols. We do not solve this problem …

We report on the implementation of a reverse-reconciliated coherent-state continuous-
variable quantum key distribution system, with which we generated secret keys at a rate of …