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Researchers create working quantum bit in silicon, pave way for PCs of the future
If you've been paying attention, you know the quantum computing revolution is coming -- and so far the world has a mini quantum network, not to mention the $10,000 D-Wave One, to show for it. Researchers from the University of Melbourne and University College, London, have now developed the "first working quantum bit based on a single atom of silicon." By measuring and manipulating the magnetic orientation, or spin, of an electron bound to a phosphorus atom embedded in a silicon chip, the scientists were able to both read and write information, forming a qubit, the basic unit of data for quantum computing.
The team used a silicon transistor, which detects the electron's spin and captures its energy when the spin's direction is "up." Once the electron is in the transistor, scientists can change its spin state any way they choose, effectively "writing" information and giving them control of the quantum bit. The next step will be combing two qubits into a logic step, with the ultimate goal being a full-fledged quantum computer capable of crunching numbers, cracking encryption codes and modeling molecules that would put even supercomputers to shame. But, you know, baby steps.
Researchers create working quantum bit in silicon, pave way for PCs of the future originally appeared on Engadget on Fri, 21 Sep 2012 00:47:00 EDT. Please see our terms for use of feeds.
Permalink | | Email this | CommentsResearchers use ambient WiFi radio waves to see through walls
Seeing through walls hasn't been a super hero-exclusive activity for a while now. According to Popular Science, however, University College London researchers Karl Woodbridge and Kevin Chetty have created the first device that can detect movement through walls using existing WiFi signals. While similar tech has required a bevy of wireless nodes, the duo has pulled off the feat with a contraption roughly the size of a suit case.
Much like radar, the device relies on the Doppler effect -- radio waves changing frequencies as they reflect off of moving objects -- to identify motion. Using a radio receiver with two antennas and a signal-processing unit, the system monitors the baseline WiFi frequency in an area for changes that would indicate movement. In tests, the gadget was able to determine a person's location, speed and direction through a foot-thick brick wall. The technology's potential applications range from domestic uses to scanning buildings during combat. Best of all, since the university's hardware doesn't emit any radio waves, it can't be detected. How's that for stealthy?
Filed under: Science
Researchers use ambient WiFi radio waves to see through walls originally appeared on Engadget on Fri, 03 Aug 2012 08:24:00 EDT. Please see our terms for use of feeds.
Permalink | | Email this | CommentsVodafone creates a signal-boosting, solar-charging umbrella to juice your cellphone whatever the weather
Vodafone has created the Booster Brolly, an umbrella that boosts your signal, charges your handset and can even keep you dry during the traditionally aqueous British summer. Developed by Dr Kenneth Tong at University College London, it's designed around a carbon fiber skeleton which holds a heavy-duty canopy in place. On top, there's 12 hand-stitched silicon solar cells which charge a battery stored in the handle. It'll reportedly charge your handset in around three hours via the handle-mounted USB port, while on top, a pair of high gain antennae enhance the signals of any cellphone within a meter radius. It'll be unveiled to the public at large at the Isle of Wight festival on June 22nd, where hordes of people will hope that the company starts selling this publicity and electricity generating canopy.
Vodafone creates a signal-boosting, solar-charging umbrella to juice your cellphone whatever the weather originally appeared on Engadget on Wed, 13 Jun 2012 19:00:00 EDT. Please see our terms for use of feeds.
Permalink | | Email this | CommentsIntel funnels $40 million into global network of research laboratories
Like any tech company worth its weight in silicon, Intel puts plenty of cash into research, often partnering with outside labs and schools that are less concerned with turning every project into a multi-billion dollar product. After throwing $30 million at Carnegie Mellon last year to open two new labs, Chipzilla is investing $40 million more in a global network of university research centers. Over the next five years that money will be rolled out to what the company is calling, Intel Collaborative Research Institutes (ICRI). The ICRI are based on the same premise as Intel's Science and Technology Centers, like those opened at Mellon, except with a global reach. Two existing labs, the Intel Visual Computing Institute at Saarland University and the Intel-NTU Connected Context Computing Center at National Taiwan University are being rolled into the program. In addition, three new centers are being opened up, including ICRIs for Sustainable Connected Cities in the United Kingdom, Secure Computing at the Technische Universität Darmstadt and Computational Intelligence at the Technion-Israel Institute of Technology. For more info on what sort or work they'll be doing at the various labs check out the PR after the break.
Continue reading Intel funnels $40 million into global network of research laboratories
Intel funnels $40 million into global network of research laboratories originally appeared on Engadget on Thu, 24 May 2012 23:04:00 EDT. Please see our terms for use of feeds.
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