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Q: Fachverband Quantenoptik und Photonik
Q 70: Nanophotonics I
Q 70.5: Vortrag
Freitag, 14. März 2025, 12:00–12:15, HS I PI
On the Development a Room-Temperature Quantum Register based on Modified Divacancies in 4H-SiC in Luxembourg — •Flavie D. Marquis1,2, Jonah Heiler1,2, Leonard Zimmermann1,2, Raphael Wörnle3, Jörg Wrachtrup3, Stephan Kucera1, and Florian Kaiser1,2 — 1MRT Department, Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg — 2University of Luxembourg, 4365 Esch-sur-Alzette, Luxembourg — 33rd Institute of Physics, University of Stuttgart, Stuttgart, Germany
Recent studies on the nature of modified divacancies in 4H silicon carbide (notably the PL6) have shown their remarkable stability under ambient conditions as well as readout contrast and count rates comparable to the nitrogen vacancy in diamond. Next steps towards quantum applications must now address the coherent control of nuclear spin qubit registers. Here, I will present the first steps towards the implementation of a few-qubit register at room-temperature. I will introduce different measurement methods based on pulsed EPR to brush a portrait of the spin-optical properties and capabilities of the divacancy-nuclear spin system. Technical realization of electron and nuclear spin control is also discussed. With this system, we strive to demonstrate small quantum algorithms, such as Grover and Deutsch-Josza.
Keywords: silicon carbide; colour center