Quantum Encrypted Communication Between Drones

Zhenda Xie at Nanjing University has created cheap quantum encrypted communication between drones. Above – Quantum network and physical realization with mobile drone-based nodes. (a) A practical quantum network consists of multinode structure and should provide access for users at any time. (b) If link distance is over the Rayleigh length limit, the beam aperture …

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Interference Noise Shield Extend Quantum Systems To Last 10,000 Times Longer

Researchers at the University of Chicago have enabled quantum states to last 10,000 times longer than before. The quantum system was operational for a total of 22 milliseconds, four orders of magnitude greater than if the quantum system was left unshielded. They tuned the magnetic field to the rapid rotation of the electron spins inside …

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Quantum Entangled Computer Memory Over 30 Miles Enables Quantum Internet

Chinese scientists have transmitted quantum computer memory between two entangled clouds of atoms over 50 kilometers. They developed an efficient atom-photon entanglement source that is suitable for low-loss transmission in fibers. This means a quantum internet could span a large city network. They entangled two clouds of a billion atoms then extracted a photon from …

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Chip-to-chip Quantum Teleportation and Multi-photon Entanglement in silicon

Silicon is a compelling platform for classical optical telecommunications as well as quantum communications, both through optical fibers. In general, the silicon-based integrated quantum transceivers could provide possible low-cost and high-performance secure communication networks. A reliable transfer of single photon qubits from one silicon device to another has already been shown, and the distribution of …

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Ironbridge Quantum Communication

Cambridge Quantum Computing uses photonics and quantum entanglement to generate truly random numbers. They also constantly verify that quantum randomness is being maintained. Failure to of quantum randomness tests indicates that there has been interference and tampering. Brian WangBrian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per …

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Russian Quantum Hacking Lab

There is a Quantum hacking lab which is a site of the Russian Quantum Center. This site has a collection of videos, research papers and presentations about quantum cryptography and quantum security. Vadim Makarov worked at the University of Waterloo for many years and recently has been in Shanghai and Moscow. Brian WangBrian Wang is …

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Quantum Control in Nanodiamonds

Quantum coherence control usually requires low temperature environments. Even for nitrogen-vacancy center spins in diamond, a remarkable exception, the coherence signal is limited to about 700 K due to the quench of the spin-dependent fluorescence at a higher temperature. Here researchers overcome this limit and demonstrate quantum coherence control of the electron spins of nitrogen-vacancy …

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Global Quantum Communication Network has Been Proven Feasible With 20,000 km Transmissions

The first exchange of a few photons per pulse has been performed between two different satellites 20,000 kilometers apart. This was between the Russian GLONASS constellation and the Space Geodesy Centre of the Italian Space Agency. The longest channel length previously demonstrated was around 7,000 km, in an experiment using a Medium-Earth-Orbit (MEO) satellite that …

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Super-precise Quantum navigation using lasers and super cold atoms

The UK’s first quantum accelerometer for navigation has been demonstrated by a team from Imperial College London and M Squared. Losing GPS (global positioning satellites) service for one day would cost the UK £1 billion. Losing GPS is also a large concern for advanced militaries. Precision warfare depends upon GPS. UK team has demonstrated a …

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