From Algorithms to Applications: How Baden-Württemberg Is Building a Full-Stack Quantum Computing Ecosystem
19.03.26 | Nine research teams, four Fraunhofer institutes, five universities, and one shared mission: making quantum computing usable for chemistry, materials science, and engineering in Baden‑Württemberg. At a KQCBW25 working meeting in Stuttgart, the partners presented new results on quantum algorithms, hardware experiments, and software tools that together form a growing full‑stack ecosystem. .
© Yeama Bangali | The project team at the work package meeting in Stuttgart on algorithms for quantum chemistry and materials science
One focus lies on quantum chemistry and materials simulation, where many experts expect the first practical quantum advantage. KQCBW teams are developing methods to simulate molecules and materials more efficiently, from neural‑network‑based quantum states for NMR spectroscopy to measurement protocols that reduce the number of quantum experiments required. These approaches build a toolchain that could help partners from the chemical, pharmaceutical, and materials industries tackle problems that are difficult for classical computers.
Another focus is using today’s noisy quantum hardware in a meaningful way. Researchers are running experiments on IBM quantum processors to compute Green’s functions for correlated‑electron materials and to study optimisation problems relevant to magnetic systems. Error mitigation and scalable algorithmic strategies play a key role here, ensuring that the results are scientifically meaningful even with limited qubit numbers.
Beyond individual use cases, KQCBW is also working on the algorithmic and software infrastructure that future applications will rely on. This includes more efficient building blocks for quantum algorithms as well as a software ecosystem based on tools such as Qrisp and established quantum frameworks. Together with the planned KQCBW Quantum Cloud, this infrastructure is designed to make quantum resources easier to access and integrate into industrial workflows.
The meeting in Stuttgart showed how the consortium’s distributed collaboration is turning into concrete outputs: publications, experiments on real hardware, and reusable software components. With application domains ranging from molecular simulation to engineering, and with strong industry partners on board, Baden‑Württemberg is systematically positioning itself to benefit from quantum computing as the technology matures.
Project insights by Dr. Vamshi Mohan Katukuri