Whether ultra-fast data processing or more precise medical diagnostics – quantum technologies are considered one of the greatest achievements of physics of the 20th century and enable new applications in many areas of life. At Leibniz IPHT, research into quantum systems focuses primarily on biomedical applications. In the coming years, the topic of quantum biophotonics is to be enhanced and anchored in the research profile of the institute. Leibniz IPHT is currently ­participating in ­several national collaborative projects.

In order to exceed the computing power of today’s computers and solve mathematical tasks significantly faster, 25 leading German companies and research institutions are working on the first quantum computer from Germany in the five-year cooperative project QSolid (Quantum Computer in the Solid State). Equipped with several quantum processors based on superconducting circuits, the new supercomputer is expected to be far superior to previous computers for specific tasks. Leibniz IPHT con­tributes its many years of experience in the design, manufacture and characterization of superconducting circuits to the project. By developing new production methods and characterization processes for implementing high-quality superconducting circuits, the underlying key and circuit components as well as new material systems, the team from the Quantum Systems Research Department, together with its partners, contributes to the realization of the next-generation supercomputer.

The development of reliable key technologies for high-performance quantum computers, but also for extremely sensitive quantum sensors for exploration and navigation systems or precise diagnostic procedures, is part of the ­SuperLSI project (Highly Integrated Superconducting Nanostructures for Quantum Technologies). Five German partners from research and industry are working on the building blocks of superconducting quantum systems in the three-year project. By researching and developing novel, precise and standardized fabrication processes for highly efficient superconducting circuits, Leibniz IPHT brings its extensive expertise in quantum technologies to the project while expanding its competencies in this field. In addition to new coating and structuring processes, the researchers are working on DUV laser lithography as well as superconducting material concepts for the realization of highly integrated, robust quantum circuits of high quality.

The German Federal Ministry of Education and Research (Bundesministerium für Bildung und Forschung, BMBF) is funding the two cooperative projects QSolid and SuperLSI with a total of 81.9 million Euros.