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- Philipp Neumann
- 3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.
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- Johannes Beck
- 3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.
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- Matthias Steiner
- 3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.
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- Florian Rempp
- 3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.
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- Helmut Fedder
- 3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.
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- Philip R. Hemmer
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA.
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- Jörg Wrachtrup
- 3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.
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- Fedor Jelezko
- 3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.
説明
<jats:title>Probed But Not Perturbed</jats:title> <jats:p> The processing and manipulation of quantum information holds great promise in terms of outperforming classical computers and secure communication. However, quantum information is delicate, and even reading the information is a destructive and probabilistic process requiring a number of measurements to home in on the information stored as a quantum state. For the nitrogen vacancy in diamond, <jats:bold> Neumann <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="542" related-article-type="in-this-issue" vol="329" xlink:href="10.1126/science.1189075">542</jats:related-article> , published online 1 July) show that these limitations can be eliminated. A measurement protocol was designed and implemented where the spin state of the nuclear spin of the vacancy could be mapped onto and read out from the surrounding electronic spins in a single-shot measurement nondestructively. </jats:p>
収録刊行物
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- Science
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Science 329 (5991), 542-544, 2010-07-30
American Association for the Advancement of Science (AAAS)