Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 38: Poster IV

Q 38.49: Poster

Mittwoch, 13. März 2024, 17:00–19:00, KG I Foyer

High fidelity quantum gates between electronic and nuclear spins in diamond — •Simon Gregor Walliser, Philipp Vetter, and Fedor Jelezko — Institut für Quantenoptik, Universität Ulm, Deutschland

Quantum computing is a rapid developing field which takes advantage of quantum mechanical phenomena to efficiently solve complex problems.

A potential candidate, for a small-scale proof-of-principle quantum computer, is the nitrogen vacancy (NV) center in diamond, a point defect in the diamond lattice. It allows manipulation and optical readout of its electron spin state at room-temperature and can control surrounding nuclear spins.

We implement several two-qubit gates between the electron spin of the NV center and surrounding, weakly coupled carbon spins, based on dynamical decoupling sequences. The performance of the gates is planned to be evaluated through several protocols, which take state and measurement errors into account, to ensure a fair comparison with other systems.

Keywords: Quantum Computing; Nitrogen Vacancy Center; Color Centers in Diamond; Dynamical Decoupling