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Science 13 October 2006:
Vol. 314. no. 5797, p. 220
DOI: 10.1126/science.314.5797.220d
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This Week in Science

Various implementations of controlling and manipulating individual quantum states are currently being explored for possible applications in quantum information processing. Childress et al. (p. 281, published online 14 September) describe nuclear magnetic resonance experiments on individual defect centers in diamond, which acts as a single electron solid-state qubit. Using the observed spin-echo signals and extensive modeling of the hyperfine interactions, the authors reconstruct the local environment of the center and show that its electron spin coherence properties are determined by surrounding carbon-13 nuclear spins. They argue that their ability to address and manipulate electron and nuclear spins may be a possible route to quantum information processing.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)