Single-shot readout of a single nuclear spin
- PMID: 20595582
- DOI: 10.1126/science.1189075
Single-shot readout of a single nuclear spin
Abstract
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.
Comment in
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Physics. Quantum measurement and control of single spins in diamond.Science. 2010 Nov 26;330(6008):1188-9. doi: 10.1126/science.1198299. Science. 2010. PMID: 21109659 No abstract available.
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