Quantum computing has the potential to revolutionize many aspects of society by solving real-world problems including the design of new drugs, materials, and catalysts with unprecedented accuracy. The QUACIMI project focuses on improving the performance of quantum chips by developing an advanced quantitative imaging technique. The goal is to accurately characterize the magnetic field generated by on-chip micromagnets - crucial for the development of scalable quantum computing.

Innovative Imaging Technique

We will develop an advanced quantitative imaging technique to characterize the micromagnets on quantum chips under cryogenic conditions. This includes upgrading the QuantaMap SQUID-AFM microscope hardware with a calibrated magnet and improving the spatial resolution and magnetic sensitivity. This approach is an innovative integration of quantum technologies, high-resolution imaging, and system engineering. This project is aligned with key strategic domains, combining breakthroughs in mechatronics and imaging to develop diagnostic metrology critically needed to facilitate quantum computing technologies.

Enhanced quantum chip fidelities

The project involves fabricating several magnetic structures on chips to verify the microscope's performance and calibrate magnetic simulations. We will develop measurement and data analysis protocols for generating quantitative magnetic images on spin qubit devices. These results will be used as an input for creating predictive magnetic simulations for new materials and designs. In turn, this will lead to improved designs and performance of micromagnets for higher quantum chip fidelities, ultimately validated using the upgraded tool.

Collaboration and Impact

This project is a collaboration between QuantaMap and TNO, building on a 2024 proof-of-principle study. The enhanced SQUID-AFM metrology system will enable critical developments in the quantum sector, as well as broader markets in semiconductor diagnostics and nanotechnology. It will accelerate the development of spin qubit technology, paving the way for high-performance quantum chips. The initiative will bolster the Netherlands’ leadership in spin qubit computing. This, in addition with spin qubits gaining increasing traction, will foster the Netherlands’ economic and societal benefits while enhancing market competitiveness.