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United Kingdom

Two-Photon Walk a Giant Leap For Quantum Computing 112

Posted by timothy
from the stochastically-awesome dept.
ElectricSteve writes "Research conducted at the University of Bristol means a number of quantum computing algorithms may soon be able to execute calculations of a complexity far beyond what today's computers allow us to do. The breakthrough involves the use of a specially designed optical chip to perform what's known as a 'quantum walk' with two particles ... and it suggests the era of quantum computing may be approaching faster than the scientific establishment had predicted. A random walk – a mathematical concept with useful applications in computer science – is the trajectory of an object taking successive steps in a random direction, be it over a line (with only two possible directions) or over a multi-dimensional space. A quantum walk is the same concept, but translated to the world of quantum computing, a field in which randomness plays a central role. Quantum walks form an essential part of many of the algorithms that make this new kind of computation so promising, including search algorithms that will perform exponentially faster than the ones we use today."
NASA

NASA To Cryogenically Freeze Satellite Mirrors 47

Posted by Soulskill
from the ain't-it-cool dept.
coondoggie writes "NASA said it will soon move some of the larger (46 lb) mirror segments of its future James Webb Space Telescope into a cryogenic test facility that will freeze the mirrors to -414 degrees Fahrenheit (~25 K). Specifically, NASA will freeze six of the 18 Webb telescope mirror segments at the X-ray and Cryogenic Facility, or XRCF, at NASA's Marshall Space Flight Center in Huntsville, Alabama, in a test to ensure the critical mirrors can withstand the extreme space environments. All 18 segments will eventually be tested at the site. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures."
Emulation (Games)

Emulating New Super Mario Bros. Wii At 1080p 76

Posted by Soulskill
from the super-high-def-mario dept.
KingofGnG writes "An impressive confirmation of the Dolphin Wii emulator's capabilities comes from a YouTube video, which shows off recently-added video clips of New Super Mario Bros. Wii in full HD. It demonstrates the growing compatibility of Dolphin with the latest games published for the Nintendo console."

It is not for me to attempt to fathom the inscrutable workings of Providence. -- The Earl of Birkenhead

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