Regensburg 2022 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 8: Quantum Sensors and Metrology

QI 8.1: Hauptvortrag

Mittwoch, 7. September 2022, 15:00–15:30, H9

Exploring Quantum Materials with Quantum Sensors — •Uri Vool — Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

In recent years, improvements in crystal growth and sample fabrication have given us access to an expanding variety of quantum materials which exhibit exotic macroscopic phenomena directly tied to the strong quantum effects in their microscopic structure. These are exciting for basic research and potential technology applications, but there are still fundamental open questions about the structure of such systems, and the ability to control their quantum effects.

Meanwhile, there has been rapid growth in the ability to control coherent quantum effects in various solid state systems, from atomic defects to macroscopic electromagnetic circuits. These quantum systems can be efficiently manipulated and tuned while maintaining high coherence, making them leading quantum computing platforms. These advantages also make them excellent quantum sensors, and their operation at cryogenic temperatures and material compatibility make them especially suited for exploring quantum materials.

This talk will present several recent and ongoing experiments using coherent quantum systems for material exploration. We will focus on two experimental techniques: 1. Nitrogen-vacancy centers as cryogenic scanning probes for imaging hydrodynamic electron flow. 2. Hybrid superconducting circuits as probes of the superconducting structure in novel materials. Finally, we will discuss the prospective of this approach for material exploration and quantum technology.