China sets new record for quantum entanglement en route to build new communication network

China sets new record for quantum entanglement en route to build new communication network

China sets new record for quantum entanglement en route to build new communication network CHINA has scored a victory against hackers and spooks as it surges ahead of other world powers in a new kind of space race. China has used a laser on a satellite orbiting 480 kilometres above the earth to produce entangled photons and beam them to stations on the ground. Picture: Cai Yang/Xinhua via ZUMA IN A bid to build an entirely new kind of internet — completely secure and impervious to hackers — China has…

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Quantum tractor beam could tug atoms, molecules

Quantum tractor beam could tug atoms, moleculesdouble-slit experiment

Quantum tractor beam could tug atoms, molecules Electron beams could enable ‘matter wave’ treknology, theoretical study suggests The wavelike properties of quantum matter could lead to a scaled-down version of Star Trek technology. A new kind of tractor beam could use a beam of particles to reel in atoms or molecules, physicists propose in the May 5 Physical Review Letters. Scientists have previously created tractor beams using light or sound waves, which can pull small particles a few millimeters or centimeters (SN: 11/15/14, p. 16). But “the idea of doing…

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IBM’s online quantum machine gets faster

IBM's online quantum machine gets faster

IBM’s online quantum machine gets faster Image copyrightIBMImage captionThe processor can be accessed via a web interface online : IBM has made its quantum computing system commercially available to businesses and beefed up an existing system used by the research community. The firm is hoping to boost the numbers of people able to use such computers. The machine, based in New York, has been available via the internet since May last year. Future applications include the discovery of new materials and medicines as well as making artificial intelligence much more…

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