Quantum Sensing: From Diamonds to Devices
ABSTRACT
In the past decade, nitrogen-vacancy (NV) centers in diamond have emerged as a powerful platform for sensing magnetic fields with sensitivities below 1 pT/√Hz under ambient conditions. This capability is achieved through the coherent control of more than 10^10 qubits based on electron spins. However, developing magnetometers that exhibit similar performance outside the laboratory presents significant challenges, as measurement accuracy is compromised by undesired defects within the diamond lattice at the one hand and environmental influences such as magnetic field inhomogeneities on the other hand. To address these constraints, precise manipulation of the system's dynamics through tailored quantum protocols is essential to enhance the overall robustness and sensitivity of spin-based quantum sensors. Our quantum sensor device is miniaturized to a compact device using hybrid integration technology. Finally, we will demonstrate how these unique properties will enable exciting applications, ranging from detecting tiny signals with sub-10 pT amplitude in medical diagnostics to improving airplane navigation.
BIOGRAPHY
Dr. Frederik Schaal is CTO of Bosch’s Quantum Sensing start-up and holds a PhD and Diploma in Engineering from the University of Stuttgart, Germany. He has nearly 20 years of experience in innovating new technologies - in the academic environment as well as in the start-up and also the corporate world. Dr. Frederik Schaal has built up his own companies as well as corporate start-ups. He has deep expertise in the field of sensors and optical systems as well as additive manufacturing. His experience ranges from research & development to business model and organization building.