Mainz 2026 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 80: Quantum Technologies – Color Centers III
Q 80.3: Vortrag
Freitag, 6. März 2026, 15:00–15:15, P 5
Detection and control of a nuclear spin register coupled to a spin-1/2 — •Andreas Tangemann1, Marco Klotz1, David Opferkuch1,2, and Alexander Kubanek1,2 — 1Institute for Quantum Optics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany — 2Center for Integrated Quantum Science and Technology (IQST), Ulm University, Albert-Einstein-Allee 11, Ulm 89081, Germany
Solid-state spin defects, such as color centers in diamond, are among the most promising candidates for scalable and integrated quantum technologies. In particular, the good optical properties of negatively-charged silicon-vacancy centers (SiV) in diamond, combined with naturally occurring and exceptionally coherent nuclear spins, serve as a building block for quantum networking applications. We demonstrate detection and control of a nuclear spin register coupled to a highly strained SiV at four Kelvin. Moreover, we measured the interconnectivity of the register with spin-echo double resonance.
[1] M. Klotz et al., https://arxiv.org/pdf/2508.05255, (2025)
[2] M. Klotz et al., npj Quantum Inf. 11, 91 (2025)
Keywords: Diamond; Silicon vacancy center; Spin qubits; Nuclear spin register