When good computers go bad

Personal computers are complex devices. We use them every day to do so many things and quite frankly, I don't know how I got along without one back in the olden days (that's the '70s in case you were wondering). Their complexity ...

D-Wave and predecessors: From simulated to quantum annealing

The D-Wave computer is currently the latest link of a long chain of computers designed for the solution of optimization problems. In what sense does it realize quantum computation? We describe the evolution of such computers ...

Mastering multicore

(PhysOrg.com) -- MIT researchers have developed software that makes computer simulations of physical systems run much more efficiently on so-called multicore chips. In experiments involving chips with 24 separate cores -- ...

NASA's Curiosity rover to be back online next week

NASA's Curiosity rover, which has been exploring Mars since it landed to much fanfare last August, should be running at full capacity next week, after a memory glitch set the robot back.

A blueprint for a quantum computer in reverse gear

Large numbers can only be factorized with a great deal of computational effort. Physicists at the University of Innsbruck, Austria, led by Wolfgang Lechner are now providing a blueprint for a new type of quantum computer ...

Is your supercomputer stumped? There may be a quantum solution

Some math problems are so complicated that they can bog down even the world's most powerful supercomputers. But a wild new frontier in computing that applies the rules of the quantum realm offers a different approach.

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