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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Ten year $1.275 billion US National Quantum Initiative proposed to get more quantum engineers

There is a proposed $1.275 billion National Quantum Initiative to accelerating research and training in quantum computing. The funding would be provided over ten years. Several centers of excellence for quantum computing would help train many quantum engineers. Chris Monroe, cofounder of IonQ, was one of the authors. IonQ is developing a general-purpose trapped ion …

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Faster weapons development and rollout critical with rise of hypersonics and anti-stealth technology

The US Air Force is finishing engineering details on an aggressive plan to prototype, test and deploy hypersonic weapons on a faster schedule. Having a faster development and rollout of offensive military capabilities is critical with decline of stealth and rise of hypersonic Quanutum radar and other anti-stealth countermeasures are proliferating Stealth effectiveness is declining …

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Photonic precision measurement chip shows mass production of quantum sensors is possible

Researchers at the National Institute of Standards and Technology (NIST) have created a chip on which laser light interacts with a tiny cloud of atoms to serve as a miniature toolkit for measuring important quantities such as length with quantum precision. The design could be mass-produced with existing technology. Above – NIST’s prototype chip for …

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Analog quantum simulation based on laser-trapped circular Rydberg atoms

State-of-the-art techniques make it possible to build a spin-chain quantum simulator based on laser-trapped circular Rydberg atoms. This simulator combines the flexibility of atomic lattices and the individual atomic observable read-out typical of ion trap, together with the strong dipole-dipole interactions of Rydberg atoms. Defect-free atomic chains can be prepared by an evaporative cooling method, …

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DARPA aims for 100-fold performance improvement for defense-related sensors and devices

The performance and reliability of quantum sensors and devices is dependent on the length of time the underlying quantum states can remain coherent. If you wait long enough, interactions with the environment will make the state behave like a conventional classical system. In many cases, this time is significantly short. DARPA, with an eye on …

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NIST creates spectrometer with 10,000 times more precision than standard devices

A new NIST (National Institute of Standards and Technology) spectrometer measures single photons with great precision. The device could help bring about “quantum communications” networks, which would use individual particles of light to send bits of information. Because each bit of information can be embedded in the quantum properties of a single photon, the laws …

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New form of matter Excitonium

Excitonium is a condensate and it exhibits macroscopic quantum phenomena, like a superconductor, or superfluid, or insulating electronic crystal. It’s made up of excitons, particles that are formed in a very strange quantum mechanical pairing, namely that of an escaped electron and the hole it left behind. Above – Artist’s depiction of the collective excitons …

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Cryptography and radar won WW2 and today Quantum military technologies are similarly critical

Cryptography and radar were technologies that won World War 2. Broken codes let the allies know where major forces were being moved. So the US fleet could choose where to intercept the Japanese Navy for the Battle of Midway. Radar and sonar then provided realtime tracking of the Japanese forces during the battle. This is …

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