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Two-Photon Walk a Giant Leap For Quantum Computing 112

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."

Comment Re:What the hell? (Score 2, Interesting) 646

I noticed that too. My wife didn't think it was possible that I could be that sensitive to HFCS. But then she saw me drink a Mt Dew, then fall asleep 20 minutes later, then be totally awake 40 minutes after that. I suspect it's the fructose and has something to do with the way some people process it. Fructose needs glucose to process, so I think that when I consume fructose, it pulls glucose from blood to process it. That seems to cause a blood sugar crash in me. The effect was so pronounced that people around me thought I was a narcoleptic (it's even in my military service record).

After I cut out HFCS, I haven't had a problem with it and feel much more awake and alert all day. I don't even need caffeine anymore.

Comment Re:Star Wars v. Star Trek (Score 1) 495

How did Kirk not get drummed out of Starfleet after being caught by Khan with his shields down? How many of his crew paid the ultimate price for that command failure? What would happen to a US Military Officer who made a similar mistake?

In my experience, those officers get promoted. That way, they can do less damage in the field next time.

Government

FBI Instructs Wikipedia To Drop FBI Seal 485

eldavojohn writes "The FBI got in contact with Wikipedia's San Francisco office to inform them they were violating the law in regards to 'unauthorized production' of this seal. The FBI quoted the law as saying, 'Whoever possesses any insignia... or any colorable imitation thereof... shall be fined... or imprisoned... or both.' Wikipedia refused to take the image down and stated that the FBI was misquoting the law. The FBI claims that this production of this image is 'particularly problematic, because it facilitates both deliberate and unwitting violations of restrictions by Wikipedia users.' Wikipedia's lawyer, Mike Godwin (please omit certain jokes), contacted the FBI and asserted, 'We are compelled as a matter of law and principle to deny your demand for removal of the FBI Seal from Wikipedia and Wikimedia Commons,' adding that the firm was 'prepared to argue our view in court.' Wikipedia appears to be holding their ground; we shall see if the FBI comes to their senses or proceeds with litigation."
Games

Submission + - It's Official: Valve Releasing Linux Source Engine (phoronix.com) 1

l_bratch writes: "Valve Corporation has today rolled out their Steam Mac OS X client to the general public and confirmed something we have been reporting for two years: the Steam content delivery platform and Source Engine are coming to Linux. This news is coming days after we discovered proof in Steam's Mac OS X Client of Linux support and subsequently found more Linux references and even the unreleased Steam Linux client. The day has finally come and Linux gamers around the world have a reason to rejoice, as this is the biggest news for the Linux gaming community that sees very few tier-one titles."

Comment Re:Perfect game in less than 90 minutes? (Score 1) 142

It's not necessarily a fraud. It took them a while to verify the winner's results. If he had been disqualified in any way after they declared that a winner had been found, then the promotion would have ended prematurely, possibly without a winner.

If I had heard about this promotion in advance, I would've assumed that I'd have to buy the game the day it came out to have any chance at the prize. After a week, I would've expected there to be numerous potential winners. It's common knowledge that there are a lot of dedicated gamers out there with lots of time on their hands to beat challenges like the perfect game here. I think any reasonable person would ignore the promotion after a few days.

Comment Re:What? (Score 1) 320

I can understand their zeal with keeping to a consistent release schedule. One of the reasons for starting the project was that Debian releases were slowing down and unpredictable. The steady release schedule is somewhat like public transportation: nobody will use a bus or train system if it operates on an erratic timetable, no matter what the benefits are.

That said, I think you're right about letting the LTS slip a month or two here or there. But that's probably unnecessary for their other releases.

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