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The impossible computer is theoretically possible

By | March 12, 2010, 5:04 AM PST

It can’t be done, but it’s theoretically possible.

A computer that works faster than the speed of light has been proposed by Viennese physicists Karl Svozil and Volkmar Putz.

They call the theoretical result a superluminal computer. The principle at use is called quantum entanglement, the linking of objects’ quantum states so one can’t be described without the other.

Leaving aside for a moment how you might build a superluminal computer or what one might do with it, nothing great happens unless it is first imagined.

Computers are a famous example.

Charles Babbage imagined what he called the “difference engine” in the late 1840s, leaving detailed drawings. The Science Museum of London built one for Babbage’s bicentennial. It worked.

Imagination and engineering are the other vital ingredients in invention. William Gibson, who imagined much of our own age in novels like Neuromancer, teamed with Bruce Sterling in 1990 to create The Difference Engine (above), a novel set in an 1885 where Babbage’s engine worked and transformed society.

In their novel (just $7.99 at Amazon) the plot is part Sherlock Holmes, and part Tom Standage’s The Victorian Internet, in which ideas we know well — tech-based gambling, fear of technology, and vast fortunes made possible by innovation — turn out to not be so new after all.

Babbage imagined his invention nearly a hundred years before Eckert and Mauchly engineered their ENIAC, the first working computer. It was based on vacuum tubes rather than gears.

But long before that, businesses were making use of Hollerith card readers, which are more closely related to what Babbage imagined. Card readers built IBM decades before ENIAC, since they were one of the three pillars (adding machines and typewriters were the others) on which Thomas Watson Sr. built starting in 1914.

What’s the point of all this history, pseudo-history science fiction and futurism? With a spring break weekend coming, I have just given you a reading list and, if you’re young enough, a great task that can last your lifetime.

Build the superluminary computer.

Start your week smarter with our weekly e-mail newsletter. It's your cheat sheet for good ideas. Get it.

Dana Blankenhorn

About Dana Blankenhorn

Dana Blankenhorn was a contributing editor for SmartPlanet from 2009 to 2010.

Dana Blankenhorn

Dana Blankenhorn

Contributing Editor, Technology

Dana Blankenhorn has written for the Chicago Tribune, Advertising Age's "NetMarketing" supplement and founded the Interactive Age Daily for CMP Media. He holds degrees from Rice and Northwestern universities. He is based in Atlanta.

Follow him on Twitter.

Dana Blankenhorn

Dana Blankenhorn

Dana Blankenhorn has been a technology reporter since 1982, a business reporter since 1978, and a writer for as long as he can remember. His Schwab IRA has a few tech stocks in it, most notably some Intel and Applied Materials bought over 10 years ago. But the vast majority of his tiny fortune (emphasis on the word tiny) is invested in mutual funds. He presently writes for no one else but ZDNet, SmartPlanet and himself. But if you've got an opportunity let him know. If he takes the gig he"ll first add it to this disclosure page.

He writes for SmartPlanet and is not an employee of CBS.

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0 Votes
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book reference
I've read a number of Gibson novels, but I missed out on this one. Inspiring article and thanks for the reference. Quantum entanglement is either a magical pipe dream or it's the next great leap reminiscent of the dawn of radio.
Posted by rcasey101
12th Mar 2010
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RE: The impossible computer is theoretically possible
Here's one for you. Imagine a superluminal device that wraps around your head, like a cap, that amplifies your brain waves. Tap the brain waves with a transmitter. Send the amplified brain waves to a superluminal computer, which will print what you think before you think it. Talk about a paradox... happy
Posted by ITOdeed
12th Mar 2010
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RE: The impossible computer is theoretically possible
Hummm, was not quantum entanglement already proposed for superluminical communication years ago? As far as I know it is said that even if the "communication" would happen, reading the state of the particle would probably be not possible. Sorry, but I do not see the news here. Thanks. J.
Posted by paracels
12th Mar 2010
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RE: The impossible computer is theoretically possible
The last time I booted up mine, the date came up as April 1, 5677
Posted by FiOS-Dave
12th Mar 2010
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2nd Boot
Egads, I just booted it up again and the date read march 31, 6899.
I guess it's too late to worry about the year 7000 problem...
Posted by FiOS-Dave
12th Mar 2010
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Where's deuceexmachina
Where's deuceexmachina,I'd like to read his take on this.
Posted by qunungnauraq
15th Mar 2010
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American bias as usual
Collosus Mk II was the first electronic computer and was breaking
the German Enigma ciphers before ENIAC was thought of. The USA seems
to be copying the Russians in claiming firsts when others have gone
before. The first edition of Microsoft Encarta claimed that RCA
invented television in 1942. This totally ignored the fact that the
British Broadcasting Corporation had been using two different TV
systems for public broadcasts since 1936. John Logie Bairde invented
a mechanical system and EMI an electronic system both of which were
broadcast. The EMI system was of course the better and won.
Posted by misceng
16th Mar 2010
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Correction
At 7 above read Colossus not Collosus
Posted by misceng
16th Mar 2010
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Lack of needed qualifiers
ENIAC was the first general-purpose, Turing-complete electronic computer, to be more precise. Though some attempts were made to adapt Colossus machines to other work besides code breaking (with varying success), it wasn't until years later. Should have been mentioned, though.

The main subject here hardly seems to be news to regular readers; when I saw the headline, I thought "must be another story about quantum computers". Still only a theory, dang.
Posted by Greenknight_z
16th Mar 2010
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RE: The impossible computer is theoretically possible


Hummm, was not quantum entanglement already proposed for superluminical
communication years ago?


... Ansible
Posted by chip@...
16th Mar 2010
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RE: The impossible computer is theoretically possible
Hmm. A centennial is a one hundred year anniversary. Bicentennial is 200 years. 1840's, 1940's, 2040's?! Quantum entanglement indeed.
Posted by gregry
16th Mar 2010
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RE: The impossible computer is theoretically possible
The idea of entangled state supercomputing( or communication) has been around for awhile.
Also it not faster then light. The entangled particles act as a singleton separated by a distance, so there is no time delay between changes or disturbances. Its a way of having 2 windows on the same physical entity. The windows are separated by a distance, but you are looking at the same item.
Posted by indigoredster@...
16th Mar 2010
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RE: The impossible computer is theoretically possible
Besides the singleton aspect correctly noted by indigoredster, the uncertainty principle will be a thorn, as the principle implies that once you measure the exact location of the information, you're hosed on the exact time.

Another direction that superluminal can go is to exceed the speed of light in a medium. So you don't exceed c per se, but you exceed the speed that light can travel in the fiber or what have you. Quantum electronics has been around and improving for well over 25 years, and if I were betting on significant breakthroughs, then I'd bet on the replacement of electronic parts and CPUs with photonic parts.

As a grad student I worked on a photonic version of a diode which is one of many parts that need to be refined and integrated. The size of the resulting computers may cause them to be bigger at first, but photonic computers could be a good long term bet for speed.
Posted by cognitive
23rd Mar 2010
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