The phenomenal success of our integrated circuits managed to obscure an awkward fact: they’re not always the best way to solve problems. The features of modern computers—binary operations, separated ...

Quantum factor: the Paul trap used by Monz and colleagues. (Courtesy: C Lackner/Quantum Optics and Spectroscopy Group, University of Innsbruck) A quantum computer made of five trapped ions has been ...

As well as being incredibly fascinating, quantum mechanics is also set to revolutionize the fields of information theory and computation. There exist certain problems that could be solved using a ...

Researchers report that they have designed and built a quantum computer from five atoms in an ion trap. The computer uses laser pulses to carry out Shor's algorithm on each atom, to correctly factor ...

SAN JOSE, Calif., -- Scientists at IBM's Almaden Research Center have performed the world's most complicated quantum-computer calculation to date. They caused a billion billion custom-designed ...