Quantum computers

摘要

Is a perfect virtual reality machine possible in prin- ciple? Yes, but only if you can build a quantum com- puter. This surprising result represents the culmina- tion of a line of thought starting from Rolf Landauer in the early sixties, with a profound twist from Richard Feynman in the early eighties, and in this Decade producing the surprising Shor algorithm. Quantum physics contains within it the seeds for a Computing revolution.