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ML4Q&A - from the lives of quantum physicistsAuthor: ML4Q Cluster of Excellence
Nature is fascinating and so is physics let alone quantum physics! Join us as we delve into the lives of scientists and the complexity of their research topics. Grab a drink, hop on a bus or go for a walk and listen to the many different stories about being a scientist and basically doing something for a living only a few can understand. Our guests are all involved in the research mission of ML4Q, a German consortium dedicated to develop the best hardware platform for quantum information technology, and provide comprehensive blueprints for a functional quantum information network. #ML4QnA Language: en Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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27. Shuttling Spins: The Road to Scalable Quantum Computing with Lars Schreiber, Mats Volmer, Max Beer
Saturday, 16 May, 2026
In this episode of ML4Q&A, hosts Chandana Rao and Mira Sharma speak with Dr. Lars Schreiber (RWTH Aachen University), along with his PhD students Mats Volmer and Max Beer, about the challenges of scaling silicon-based spin qubit quantum computers. Lars Schreiber shares insights into why semiconductor platforms despite their technological maturity have not yet achieved large-scale quantum systems. The conversation explores the practical realities of building spin qubit devices, from material imperfections and device variability to the difficulty of controlling millions of qubits. Mats and Max discuss their work on conveyor-style spin-qubit shuttling and T-junction architectures for routing qubits in two dimensions, explaining how moving electrons across a chip can enable scalable designs while introducing new challenges such as valley splitting and decoherence. They also discuss the surprising material physics that emerges when quantum informations starts to move. The episode also examines how these research ideas are transitioning into real-world technology through the startup Arque Systems, highlighting the shift from academic prototypes to industrial-scale quantum hardware. Listen to the full episode to explore the path toward scalable semiconductor quantum computing.
