Making quantum cryptography truly secure

Quantum key distribution (QKD) is an advanced tool for secure computer-based interactions, providing confidential communication between two remote parties by enabling them to construct a shared secret key during the course ...

Developing a secure, un-hackable net

A method of securely communicating between multiple quantum devices has been developed by a UCL-led team of scientists, bringing forward the reality of a large-scale, un- hackable quantum network.

First noiseless single photon amplifier

Research physicists have demonstrated the first device capable of amplifying the information in a single particle of light without adding noise.

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