A group of researchers at MIT, IBM, Masaryk University in the Czech Republic, the Slovak Academy of Sciences and Northeastern University proved that even in simple spin chains, the degree of entanglement scales with the length of the chain.
Posts tagged "computers"
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Proving quantum computers feasible →
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Stanford physicists take first step toward quantum cryptography →
Quantum mechanics promises the potential to create absolutely secure telecommunications networks by harnessing a fundamental phenomenon of quantum particles.
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Self-assembling-polymer advances could increase computer memory density fivefold →
The storage capacity of hard disk drives could increase by a factor of five thanks to processes developed by chemists and engineers at The University of Texas at Austin.
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Simulation: Quantum leaps →
When high-energy physicists announced in July that they had found the long-sought Higgs boson — their biggest find in decades — the thousands of individuals involved rightly held their heads high. But in some sense, they had already been beaten to the prize.
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The Race to a Billion Billion Operations Per Second: An Exaflop by 2018? →
Control Data Corp’s (CDC) first supercomputer, the CDC 6600, operated at a speed of three megaflops (106 floating-point operations per second). A half century on, our most powerful supercomputers are a billion times faster. But even that impressive mark will inevitably fall. Engineers are eyeing an exaflop (1018 flops)—and some think they’ll get there by 2018.
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Computational medicine enhances way doctors detect, treat disease →
Computational medicine, a fast-growing method of using computer models and sophisticated software to figure out how disease develops — and how to thwart it — has begun to leap off the drawing board and land in the hands of doctors who treat patients for heart ailments, cancer and other illnesses. Using digital tools, researchers have begun to use experimental and clinical data to build models that can unravel complex medical mysteries.
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The CIA and Jeff Bezos Bet on Quantum Computing →
Inside a blocky building in a Vancouver suburb, across the street from a dowdy McDonald’s, is a place chilled colder than anywhere in the natural universe. Inside that is a computer processor that Amazon founder Jeff Bezos and the CIA’s investment arm, In-Q-Tel, believe can tap the quirks of quantum mechanics to unleash more computing power than any conventional computer chip. Bezos and In-Q-Tel are in a group of investors who are betting $30 million on this prospect.
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Logging In with Your Heartbeat →
Smartphones, tablets, gaming consoles and other devices may soon recognize their owners at a touch. The gadgets will identify users by measuring their heartbeats through their fingertips.
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Laser Circuit Could Make Computers 1,000 Times Faster →
In trying to build faster computers for the future, some researchers are looking to the speed of light. A team of engineers have built a small, simple circuit with five lasers, Chemical & Engineering News reported. It’s a step toward computers that would perform calculations based on the movement of light, instead of electrons in a silicon chip.
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Hitachi unveils glass slivers that store data forever →
As Bob Dylan and the Rolling Stones prove, good music lasts a long time; now Japanese hi-tech giant Hitachi says it can last even longer — a few hundred million years at least.
The company on Monday unveiled a method of storing digital information on slivers of quartz glass that can endure extreme temperatures and hostile conditions without degrading, almost forever.
And for anyone who updated their LP collection onto CD, only to find they then needed to get it all on MP3, a technology that never needs to change might sound appealing.
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Microsoft patents Holodeck-like 'immersive display experience' for your living room →
Anyone who has watched Star Trek has imagined what it would be like to hang out in the Holodeck, and a new patent suggests that Microsoft may one day try to bring that experience to your living room. Described as an “immersive display experience,” the concept is to expand the game past the edges of your television — so you’ll still have a primary display, but the system will project images all around you to create a more realistic experience.
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Semiconductors grown on graphene could fundamentally change semiconductor industry →
Researchers at the Norwegian University of Science and Technology (NTNU) have patented and are commercializing GaAs nanowires grown on graphene, a hybrid material with competitive properties. Semiconductors grown on graphene are expected to become the basis for new types of device systems, and could fundamentally change the semiconductor industry. The technology underpinning their approach has recently been described in a publication in the American research journal Nano Letters.
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Built-in germanium lasers could make computer chips faster →
Paul Scherrer Institute (PSI) researchers have investigated how they could make the semiconductor Germanium emit laser light. As a laser material, Germanium together with Silicon could form the basis for innovative computer chips in which information would be transferred partially in the form of light. This technology would revolutionise data streaming within chips and give a boost to the performance of electronics. The researchers have demonstrated that Germanium must be put under strain by an external force in order to turn it into a laser material.
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Quantum step toward trickier cyber-security →
A new quantum processor is capable of factoring a composite number into its constituent prime factors—a step toward advances in cybersecurity and cryptography.
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Information advantage gained from surprising quantum source →
New research lends hope that a phenomenon called quantum discord could be harnessed to bring quantum technologies within easier reach than expected. The work, by an international team, is published on 5 August 2012 in Nature Physics.
