Advances in quantum cryptography

S Pirandola, UL Andersen, L Banchi… - Advances in optics …, 2020 - opg.optica.org
Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

Distributing secret keys with quantum continuous variables: principle, security and implementations

E Diamanti, A Leverrier - Entropy, 2015 - mdpi.com
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 …

[HTML][HTML] Fundamental limits of repeaterless quantum communications

S Pirandola, R Laurenza, C Ottaviani… - Nature communications, 2017 - nature.com
Quantum communications promises reliable transmission of quantum information, efficient
distribution of entanglement and generation of completely secure keys. For all these tasks …

Measurement-device-independent quantum secure direct communication

ZR Zhou, YB Sheng, PH Niu, LG Yin, GL Long… - Science China Physics …, 2020 - Springer
Quantum secure direct communication (QSDC) is a unique technique, which supports the
secure transmission of confidential information directly through a quantum channel without …

Satellite-based continuous-variable quantum communications: State-of-the-art and a predictive outlook

N Hosseinidehaj, Z Babar, R Malaney… - … Surveys & Tutorials, 2018 - ieeexplore.ieee.org
The recent launch of the Micius quantum-enabled satellite heralds a major step forward for
long-range quantum communication. Using single-photon discrete-variable quantum states …

Theory of channel simulation and bounds for private communication

S Pirandola, SL Braunstein, R Laurenza… - Quantum Science …, 2018 - iopscience.iop.org
We review recent results on the simulation of quantum channels, the reduction of adaptive
protocols (teleportation stretching), and the derivation of converse bounds for quantum and …

Quantum hacking: Saturation attack on practical continuous-variable quantum key distribution

H Qin, R Kumar, R Alléaume - Physical Review A, 2016 - APS
We identify and study a security loophole in continuous-variable quantum key distribution
(CVQKD) implementations, related to the imperfect linearity of the homodyne detector. By …

Continuous-variable measurement-device-independent quantum key distribution with photon subtraction

HX Ma, P Huang, DY Bai, SY Wang, WS Bao, GH Zeng - Physical Review A, 2018 - APS
It has been found that non-Gaussian operations can be applied to increase and distill
entanglement between Gaussian entangled states. We show the successful use of the non …

Continuous-variable measurement-device-independent multipartite quantum communication

Y Wu, J Zhou, X Gong, Y Guo, ZM Zhang, G He - Physical Review A, 2016 - APS
A continuous-variable measurement-device-independent multiparty quantum
communication protocol is investigated in this paper. Utilizing the distributed continuous …

Finite-size analysis of measurement-device-independent quantum cryptography with continuous variables

P Papanastasiou, C Ottaviani, S Pirandola - Physical Review A, 2017 - APS
We study the impact of finite-size effects on the key rate of continuous-variable (CV)
measurement-device-independent (MDI) quantum key distribution (QKD), considering two …