Researchers show that relatively simple physical systems could yield powerful quantum computers

Quantum computers are devices—still largely theoretical—that could perform certain types of computations much faster than classical computers; one way they might do that is by exploiting “spin,” a property of tiny particles of matter. A “spin chain,” in turn, is a standard model that physicists use to describe systems of quantum particles, including some that could be the basis for quantum computers.

Read more at: http://phys.org/news/2012-11-simple-physical-yield-powerful-quantum.html#jCp