Quantum information and computation
In information processing, as in physics, our classical world view provides an incomplete approximation to an underlying quantum reality. Quantum effects like interference and entanglement play no direct role in conventional information processing, but they can--in principle now, but probably eventually in practice--be harnessed to break codes, create unbreakable codes, and speed up otherwise intractable computations.
Bennett
CH
IBM Research Division, T.J. Watson Research Center, Yorktown Heights, New York 10598, USA. bennetc@watson.ibm.com
DiVincenzo
DP