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How to feed data-hungry mobile devices? Use more antennas

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TechAndComputer (Aug. 23, 2012) — Researchers from Rice University have just unveiled a new multi-antenna technology that could help wireless providers keep pace with the voracious demands of data-hungry smartphones and tablets. The technology aims to dramatically increase network capacity by allowing cell towers to simultaneously beam signals to more than a dozen customers on the same frequency.

Details about the new technology, dubbed Argos, were presented August 23 at the Association for Computing Machinery's MobiCom 2012 wireless research conference in Istanbul. Argos is under development by researchers from Rice, Bell Labs and Yale University. A prototype built at Rice this year uses 64 antennas to allow a single wireless base...

Electronic read-out of quantum bits

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TechAndComputer (Aug. 16, 2012) — Quantum computers promise to reach computation speeds far beyond that of today's computers. As they would use quantum effects, however, they would also be susceptible to external interferences. Information flow into and out of the system is a critical point.

Researchers from KIT with partners from Grenoble and Strasbourg have now read out the quantum state of an atom directly by using electrodes. In the journal Nature, they report on the stable interface...

Optical fibers made from common materials

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TechAndComputer (Aug. 13, 2012) — Clemson researchers are taking common materials to uncommon places by transforming easily obtainable and affordable materials into fiber. Their findings are published in Nature Photonics. Share This: See Also: Matter & EnergyOpticsMaterials ScienceEnergy TechnologyComputers & MathComputer ScienceDistributed ComputingInformation TechnologyReference InfraredTensile strengthElectromagnetic...

Speedy ions could add zip to quantum computers

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TechAndComputer (Aug. 13, 2012) — Take that, sports cars! Physicists at the National Institute of Standards and Technology (NIST) can accelerate their beryllium ions from zero to 100 miles per hour and stop them in just a few microseconds. What's more, the ions come to a complete stop and hardly feel the effects of the ride. And they're not just good for submicroscopic racing -- NIST physicists think their zippy ions may be useful in future quantum computers. Share...

Physicists explore properties of electrons in revolutionary material

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TechAndComputer (Aug. 10, 2012) — Scientists from Georgia State University and the Georgia Institute of Technology have found a new way to examine certain properties of electrons in graphene -- a very thin material that may hold the key to new technologies in computing and other fields. Share This: See Also: Matter & EnergySpintronicsGrapheneMaterials ScienceComputers & MathSpintronics ResearchComputer ScienceInformation TechnologyReference Spin...