Publication Date:
2010-07-03
Description:
Projective measurement of single electron and nuclear spins has evolved from a gedanken experiment to a problem relevant for applications in atomic-scale technologies like quantum computing. Although several approaches allow for detection of a spin of single atoms and molecules, multiple repetitions of the experiment that are usually required for achieving a detectable signal obscure the intrinsic quantum nature of the spin's behavior. We demonstrated single-shot, projective measurement of a single nuclear spin in diamond using a quantum nondemolition measurement scheme, which allows real-time observation of an individual nuclear spin's state in a room-temperature solid. Such an ideal measurement is crucial for realization of, for example, quantum error correction protocols in a quantum register.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Neumann, Philipp -- Beck, Johannes -- Steiner, Matthias -- Rempp, Florian -- Fedder, Helmut -- Hemmer, Philip R -- Wrachtrup, Jorg -- Jelezko, Fedor -- New York, N.Y. -- Science. 2010 Jul 30;329(5991):542-4. doi: 10.1126/science.1189075. Epub 2010 Jul 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉3rd Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70550, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20595582" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
