Quantum computation and spin physics (invited)

Abstract

A brief review is given of the physical implementation of quantum computation within spin systems or other two-state quantum systems. The importance of the controlled-NOT or quantum XOR gate as the fundamental primitive operation of quantum logic is emphasized. Recent developments in the use of quantum entanglement to build error-robust quantum states, and the simplest protocol for quantum error correction, are discussed. © 1997 American Institute of Physics.