Superconducting circuits for quantum electronics and quantum sensors

The research in the field of low-loss high-speed electronics is the most traditional in our field. For this reason, we are a global leader in single-flux quantum integrated circuits. The unique combination of very high clock rates with very low power consumption during logic state switching gives this technology a promising potential for the realization of energy-efficient signal processing and computing modules. Consequently, our department contributes with this work both to basic research in the area of the design of future electronic components and circuits and to the engineering processing of physical active principles into innovative applications. Thus, our research work on this circuit family also serves the design automation for microelectronics - Beyond Complementary metal-oxide-semiconductor (CMOS).

It should be noted that our department is a design center in a European research network of superconducting electronics (FLUXONICS), which is an indicator of the quality of our research. Within the framework of this research network and the project S-PULSE , which is supported by the European Union, a European research roadmap has been developed with our participation, with the help of which the essential findings have been made accessible to users and colleagues. Based on the analysis of the achieved status on a global scale (, this roadmap identifies goals for the research and development activities that are still required on the way to practical implementations. In addition, we are a member of the European FLUXONICS-FOUNDRY.

Superconducting electronics with high clock frequencies and relatively simple technology is characterized by a complex design process with specific challenges in modeling, simulation and layout design. This is discussed in more detail on the page Cell Library of Single Flux Quantum Circuits.

Bioinspired Neuromorphic Electronics

With the aim of performing energy-efficient computing operations, we are researching the suitability of special physical effects for use in electronic components and integrated circuits. In doing so, we take inspiration from principles found in nature, where, for example, the entire brain activity of humans requires a power consumption of only about 20 watts.

Nonlinear phenomena open up promising possibilities for realization.

For example, superconducting circuits with Josephson junctions exhibit a siganl play very similar to that on nerve tracts. Current research is aimed at ways to exploit them for signal and data processing.

Other activities are devoted to the study of the use of memristors in electronic circuits. The motivation here is to avoid concentrated memory blocks and - as in biology - to locate the memory capability directly at the switching element.