[Event Report]The 11th Quantum Solid Flagship Seminar

The 11th Q-LEAP Flagship Seminar was held on December 8, 2025, featuring Dr. Arne Wickenbrock from Johannes Gutenberg University Mainz, who presented his cutting-edge research titled “Diamond-Based Quantum Sensing for Neurosurgery.”

During his lecture, Dr. Wickenbrock outlined the German government’s “Magnetometry” project and emphasized the superiority of diamond sensors for applications requiring minute samples or high spatial resolution, through a comparison with vapor cell and NV center magnetometry. He detailed advanced sensing technologies developed by his group, including microwave-free and zero-field magnetometry, as well as an innovative diamond optical system enabling 3D vector magnetic field imaging analogous to CT scans.

The “DIAGNOS” project, which aims to improve tumor removal and preserve brain function in neurosurgery. This involves the development of an endoscopic quantum neural analyzer for real-time magnetophysiology, magnetic resonance maps, and conductivity measurements. Dr. Wickenbrock reported the successful measurement of a human magnetocardiogram (MCG) using a diamond sensor as a step towards this goal. He also touched upon future prospects such as enhanced sensitivity through flux concentrators and zero-field NMR, and ongoing collaborations with Japan, demonstrating the immense potential of quantum sensing in the medical field. The seminar concluded with a lively Q&A session, making it a highly fruitful event.