Bonn 2025 – wissenschaftliches Programm

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SYGG: Symposium Quantum Science and more in Ghana and Germany

SYGG 1: Quantum Science in Ghana and Germany

SYGG 1.5: Hauptvortrag

Dienstag, 11. März 2025, 12:10–12:40, WP-HS

Quantum Technology with Spins — •Joerg Wrachtrup — University of Stuttgart, Center for Applied Quantum Technologies, 70569 Stuttgart — Max Planck Institute for Solid State Research, Stuttgart

Spin defects in wide band gap semiconductors are leading contenders in various areas of quantum technology. Early forerunners in the field, like the NV center in diamond have shown impressive progress for sensing, communication, and quantum computing. Single NV electron spin qubits, e.g., have matured into a new tool for imaging and sensing in material science. Multiple interacting spins in a spin network enable quantum algorithms for signal analysis, for example via a quantum Fourier transformation of AC signals. In the talk I will highlight the use of new multiqubit spin systems like spin defects in silicon carbide, to apply quantum algorithms to quantum sensing and simulation of a quantum thermodynamic processes. I will also show the use of quantum non-linear spectroscopy for enhanced quantum sensing and discuss the role of quantum spin microscopy in the discovery of a new magnetic phase.

Keywords: quantum sensing; quantum networks; solid state spins