Detecting and polarizing nuclear spins with double resonance on a single electron spin
| Autor: | Jianming Cai, Tokuyuki Teraji, Satoshi Koizumi, Masayuki Katagiri, Paz London, Liam P. McGuinness, Alex Retzker, Fedor Jelezko, Ilai Schwarz, Boris Naydenov, Ran Fischer, Martin B. Plenio, Jochen Scheuer, Junichi Isoya |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Physics
Coherence time Quantum Physics Magnetic Resonance Spectroscopy Condensed matter physics Spins Condensed Matter - Mesoscale and Nanoscale Physics Pulsed EPR Nitrogen FOS: Physical sciences General Physics and Astronomy Electrons Models Theoretical Polarization (waves) Qubit Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Spin echo Atomic physics Quantum Physics (quant-ph) Spin (physics) Quantum computer Nuclear Physics |
| Popis: | We report the detection and polarization of nuclear spins in diamond at room temperature by using a single nitrogen-vacancy (NV) center. We use Hartmann-Hahn double resonance to coherently enhance the signal from a single nuclear spin while decoupling from the noisy spin-bath, which otherwise limits the detection sensitivity. As a proof-of-principle we: (I) observe coherent oscillations between the NV center and a weakly coupled nuclear spin, (II) demonstrate nuclear bath cooling which prolongs the coherence time of the NV sensor by more than a factor of five. Our results provide a route to nanometer scale magnetic resonance imaging, and novel quantum information processing protocols. |
| Databáze: | OpenAIRE |
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