A Shortcut Through Time: The Path to A Quantum Computer - Tapa blanda

"Fascinating and highly accessible... Unpicking the complexities of the subject is not easy, but Johnson has done a fine job of it... [An] excellent book" (Scotland on Sunday)

"Lucid and accessible... [Written with] a beguiling combination of clarity and enthusiasm" (New Scientist)

"Johnson is one of the best science journalists writing today" (Scientific American)

The newest Pentium chip powering PCs and laptops contains 40 million electronic switches packed onto a piece of silicon about the size of a thumbnail. Several years from now, if this incredible shrinking continues, a single chip will hold a billion switches, then a trillion. The logical culmination is a computer in which the switches are so tiny that each consists of an individual atom. At that point something miraculous happens: quantum mechanics kick in.

Anyone who follows the science news or watches 'Star Trek' has at least a notion of what that means: particles can be in two or more places at once. Atoms obey a peculiar logic of their own - and if it can be harnessed society will be transformed. Problems that would now take forever would be solved almost instantly. Quantum computing promises nothing less than a shortcut through time.