Quantum Computer Leap Could Make Today's Encryption Passe

Researchers at MIT and the University of Innsbruck last week announced that they had designed and constructed the world's first scalable quantum computer, a development that could make existing encryption technology obsolete. They built the computer using five atoms in an ion trap, according to a report published in the journal Science. The researchers used laser pulses to carry out an algorithm -- conceived in 1994 by MIT Professor Peter Shor -- on each atom to correctly factor the number 15.

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