The probability density function of a uniform random variable looks like a horizontal line segment over the support. This indicates that for any interval of a given length within the support, the ...

Abstract: In the continuous-variable quantum key distribution (CV-QKD) system, the secret key rate (SKR) and transmission distance are important factors to evaluate the quality of system. Numerical ...

BEIJING - While the world economy is clouded by upheavals and uncertainties, China is creating new opportunities for businesses worldwide as well as global growth in its pursuit of high-quality ...