Secret key rate of a continuous-variable quantum-key-distribution scheme when the detection process is inaccessible to eavesdroppers

R Namiki, A Kitagawa, T Hirano - Physical Review A, 2018 - APS
We have developed a method to calculate a secret key rate of a continuous-variable
quantum-key-distribution scheme using four coherent states and postselection for a general …

High spectral efficiency digital coherent continuous variable quantum key distribution system using polarization-multiplexed QPSK reference signal

T Kawakami, K Yoshino, W Maeda… - … Conference on Optical …, 2023 - ieeexplore.ieee.org
We designed a digital coherent continuous variable quantum key distribution system
achieving higher spectral efficiency by extracting timing information from a polarization …

Generation of gaussian entangled states of light in an array of nonlinear waveguides

VO Martynov, VA Mironov, LA Smirnov - arxiv preprint arxiv:1907.02777, 2019 - arxiv.org
We investigate the process of entangled state of light generation while propagation along a
one dimensional array of single-mode nonlinear waveguides. We consider a situation when …