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Q: Fachverband Quantenoptik und Photonik
Q 23: Quantum Information I
Q 23.16: Poster
Tuesday, March 15, 2022, 16:30–18:30, P
Toward control of charge state dynamics and spin manipulation in diamond NV color center for quantum information processing — •Min-Sik Kwon1, Jonas Meinel1,2, Qi-Chao Sun1, Durga Dasari1, Vadim Vorobyov1, and Jörg Wrachtrup1,2 — 13. Physikalisches Institut, University of Stuttgart, Stuttgart, Germany — 2Max Planck Institute for Solid State Research, Stuttgart, Germany
Nitrogen-Vacancy (NV) color center is an artificial atom with optically accessible spin qubit. It is consisted of a vacancy of a missing carbon atom and substitutional nitrogen impurity in diamond crystal lattice. Due to longer electron spin relaxation (T1) and dephasing time(T2*) of negatively charged state of NV center, it is well available for coherent spin control, optical nanoscopy, charge-based memories, and electrical spin detection. For stable charged state in NV center, we studied optically induced interconversion between charge states, understanding charge state dynamics in NV color center to enhance the high fidelity measurement of spin readout. Additionally, for emergent quantum information processor and experimental quantum simulator, we designed and operated programmable quantum circuits and selectively harness the various neighbor nuclear spins by central NV electron spin to build quantum simulator to test interaction Hamiltonians at ambient condition.