Ion Entanglement in Quantum Information Processing
David G. Cory, Timothy F. Havel · Science · 2004
Quantum entanglement, in which the physical properties of particles become correlated, is an essential property of quantum information systems. In their Perspective, [Cory and Havel][1] discuss results reported in the same issue by [ Roos et al .][2] and by [ Leibfried et al .][3] in which trapped ions were put into entangled quantum states. The two complementary studies show that substantial progress is being made in quantum information processing and point to practical applications of entangled states. [1]: http://www.sciencemag.org/cgi/content/full/304/5676/1456 [2]: http://www.sciencemag.org/cgi/content/short/304/5676/1478 [3]: http://www.sciencemag.org/cgi/content/short/304/5676/1476