Quantum secure direct communication (QSDC) protocols enable the direct transmission of secret messages via quantum channels, obviating the need for a separate key distribution phase. Unlike quantum ...

Quantum Key Distribution (QKD) represents a paradigm shift in secure communications by using the fundamentally unpredictable behaviour of quantum systems to exchange cryptographic keys with ...

Quantum key distribution promises ultra-secure communication by using the strange rules of quantum physics to detect eavesdroppers instantly. But even the most secure quantum link can falter if the ...

Scientists are learning to engineer light in rich, multidimensional ways that dramatically increase how much information a single photon can carry. This leap could make quantum communication more ...

Quantum technologies, which leverage the principles of quantum mechanics, have been found to outperform their classical ...

Researchers at the Niels Bohr Institute have broken a long standing barrier by managing to send single photons - that can’t be copied or split and thus are secure - in the network of optical fibers we ...

Quantum communication could enable uncrackable transfer of information, but most approaches rely on trusted devices. Researchers have now demonstrated that a new method that does away with this ...

QKD offers a fundamentally different approach to securing communications, but cost, infrastructure and scalability challenges ...

From mobile phones and banking systems to aircraft, ships and emergency services, much of modern life relies on precise ...