India’s recent demonstration of a 1,000-km quantum communication network using indigenous technology marks a step forward ...

Some quantum cryptographers want to find ways to keep messages secret even if the rules of quantum mechanics don’t hold. The ...

Quantum dot–based time-bin QKD achieves stable, long-distance secure communication with practical performance.

Korean researchers have successfully established a measurement protection (MP) theory that enables stable quantum key distribution (QKD) without the need for measurement correction of quantum states, ...

In the race to secure digital infrastructure against the looming threat of quantum computing, space has emerged as an indispensable theater. Satellites, once primarily vehicles for reconnaissance and ...

Korean researchers have successfully established the world’s first “Measurement Protection (MP)” theory that enables stable Quantum Key Distribution (QKD) without need for measurement correction of ...

Continuous-variable quantum cryptography has emerged as a significant branch of quantum cryptography, with continuous-variable quantum key distribution (CVQKD) at its core. However, compared to ...

Andrew Jenkins has worked as an information analyst for an intelligence agency in Washington, D.C., for over 14 years. He is the author of the 2022 book, The Devil Made Crypto. Follow him on LinkedIn.

Physicists have long relied on elegant theorems to connect the abstract math of quantum theory with the tangible behavior of particles, yet some of those theorems have rested on assumptions that never ...

For the first time, a team of physicists in Austria has carried out an experiment that appears to verify the principle of indefinite causal order: an idea that suggests that timelines of events can ...