Regensburg 2013 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 95: Spintronics/Quantum information: Vacancies in diamond and SiC (HL, jointly with TT)
HL 95.8: Vortrag
Freitag, 15. März 2013, 11:30–11:45, H14
Detecting and Polarizing Nuclear Spins in Diamond — •Jochen Scheuer1, Paz London2, Jianming Cai3, Ilai Schwarz3, Alex Retzker4, Martin B. Plenio3, Masayuki Katagiri5,6, Tokuyuki Teraji6, Satoshi Koizumi6, Junichi Isoya5, Ran Fischer2, Liam McGuinness1, Boris Naydenov1, and Fedor Jelezko1 — 1Institut für Quantenoptik, Universität Ulm, Ulm, Germany — 2Department of Physics, Technion, Israel Institute of Technology, Haifa, Israel — 3Institut für Theoretische Physik, Universität Ulm, Ulm, Germany — 4Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel — 5Graduate School of Library, Information and Media Studies, University of Tsukuba, 1-2 Kasuga, Tsukuba, Ibaraki, Japan — 6National Institute for Materials Science, Tsukuba, Ibaraki, Japan
Control and measurement of nuclear spins is essential for medicine, chemistry and physics, but the sensitivity of conventional measurement schemes is limited due to low thermal polarization of nuclei under ambient conditions. We use an electron-nuclear double resonance technique, known as Hartmann-Hahn double resonance, to demonstrate experimentally polarization of single and multiple nuclear spins in a room temperature solid. By transferring polarization from an optically cooled electron spin associated with the nitrogen-vacancy (NV) defect, to carbon nuclei we are able to control spin bath dynamics. This work opens new possibilities for different fields of science, from control over decoherence and use of mesoscopic ensemble of nuclear spins as qubits to enhancement of contrast in magnetic resonance imaging.