Security of quantum key distribution with coherent states and homodyne detection

S Iblisdir, G Van Assche, NJ Cerf - Physical review letters, 2004 - APS
We assess the security of a quantum key distribution protocol relying on the transmission of
Gaussian-modulated coherent states and homodyne detection. This protocol is shown to be …

Secure coherent-state quantum key distribution protocols with efficient reconciliation

G Van Assche, S Iblisdir, NJ Cerf - Physical Review A—Atomic, Molecular, and …, 2005 - APS
We study the equivalence of a realistic quantum key distribution protocol using coherent
states and homodyne detection with a formal entanglement purification protocol. Maximally …

Security proof of continuous-variable quantum key distribution using three coherent states

K Brádler, C Weedbrook - Physical Review A, 2018 - APS
We introduce a ternary quantum key distribution (QKD) protocol and asymptotic security
proof based on three coherent states and homodyne detection. Previous work had …

Feasibility of continuous-variable quantum key distribution with noisy coherent states

VC Usenko, R Filip - Physical Review A—Atomic, Molecular, and Optical …, 2010 - APS
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 …

Quantum key distribution using gaussian-modulated coherent states

F Grosshans, G Van Assche, J Wenger, R Brouri… - Nature, 2003 - nature.com
Quantum continuous variables are being explored,,,,,,,,,,,, as an alternative means to
implement quantum key distribution, which is usually based on single photon counting. The …

Quantum key distribution via tripartite coherent states

AE Allati, ME Baz, Y Hassouni - Quantum Information Processing, 2011 - Springer
We propose a quantum key distribution protocol using Greenberger Horne Zeilinger tripartite
coherent states. The sender and the receiver share similar key by exchanging the …

Entanglement-based continuous-variable quantum key distribution with multimode states and detectors

VC Usenko, L Ruppert, R Filip - Physical Review A, 2014 - APS
Secure quantum key distribution with multimode Gaussian entangled states and multimode
homodyne detectors is proposed. In general the multimode character of both the sources of …

Security bound of continuous-variable quantum key distribution with noisy coherent states and channel

Y Shen, J Yang, H Guo - Journal of Physics B: Atomic, Molecular …, 2009 - iopscience.iop.org
Security of a continuous-variable quantum key distribution protocol based on noisy coherent
states and channel is analysed. Assuming that the noise of coherent states is induced by …

Entanglement as a precondition for secure quantum key distribution

M Curty, M Lewenstein, N Lütkenhaus - Physical review letters, 2004 - APS
We demonstrate that a necessary precondition for an unconditionally secure quantum key
distribution is that both sender and receiver can use the available measurement results to …

Unidimensional continuous-variable quantum key distribution

VC Usenko, F Grosshans - Physical Review A, 2015 - APS
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 …