Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 51: Quantum Information (Quantum Repeater) II
Q 51.1: Vortrag
Donnerstag, 14. März 2019, 14:00–14:15, S HS 002 Chemie
Initialization and Readout of Nuclear Spins via negatively charged Silicon-Vacancy Center in Diamond — •Katharina Senkalla1, Mathias Metsch1, Michael Kern1, Benedikt Tratzmiller3, Petr Siyushev1, and Fedor Jelezko1,2 — 1Institute for Quantum Optics, Ulm University, Germany — 2Center for Integrated Quantum Science and Technology IQst, Ulm University, Germany — 3Institute for Theoretical Physics, Ulm University, Germany
In the emerging field of fourth-group-based defects in diamond the SiV − is the most studied one. Due to outstanding optical properties such as high Debye-Weller Factor and superior spectral stability and the electron spin 1/2 system, it is a promising candidate as light matter interface for quantum communication and entanglement distribution applications. However, short spin coherence of the defect diminish its usability for this application. Here we show a hybrid approach which would help to overcome the poor electron spin properties. We exploit surrounding carbon-13 nuclear spins as long leaving quantum memory. The initialization of carbon-13 spin is achieved via dynamical nuclear spin polarization technique. Using the same method, the readout of coherently controlled nuclear spin is demonstrated.