Communication security has to evolve to a higher plane in the face of the threat from the
massive computing power of the emerging quantum computers. Quantum secure direct …

Quantum key distribution (QKD), guaranteed by the principles of quantum mechanics, is one
of the most promising solutions for the future of secure communication. Integrated quantum …

Quantum Key Distribution (QKD) is a promising technology that provides proven
unconditional security based on fundamentals of quantum physics, especially for point-to …

Self-stabilizing the quantum key distribution (QKD) system is essential to evaluate
eavesdroppers' information accurately. We develop and verify a polarization-insensitive time …

One of the challenges of implementing free-space quantum key distribution (QKD) systems
working in daylight is to remove unwanted background noise photons from sunlight …

Quantum key distribution (QKD), harnessing quantum physics and optoelectronics, may
promise unconditionally secure information exchange in theory. Recently, theoretical and …

Abstract Quantum Key Distribution (QKD) systems are thought to be the best method for
securing data in cloud storage and boosting security and privacy. Due to the increasing use …

In this study, we report a transmitter system for free‐space quantum key distribution (QKD)
using the BB84 protocol, which does not require an internal alignment process, by using a …

A new terahertz (THz) polarization beam splitter (PBS) based on cyclic olefin copolymer
(COC) photonic crystal fiber (PCF) with a simple structure is proposed. The dual cores are …

ABSTRACT A novel cyclic olefin copolymer (COC)-based terahertz (THz) polarization beam
splitter (PBS) employing photonic crystal fiber (PCF) with cascade hexagonal porous two …