The frontier of information processing lies in nanoscience and nanotechnology research. At the nanoscale, materials, and structures can be engineered to exhibit interesting new properties, some based on quantum mechanical effects. Our research focuses on developing nanofabrication technology at the few-nanometer length scale. We use these technologies to push the envelope of what is possible with photonic and electrical devices, focusing in particular on superconductive and free-electron devices. Our research combines electrical engineering, physics, and materials science and helps extend the limits of nanoscale engineering.

The nanocryotron: A superconducting-nanowire three-terminal electrothermal device

Recent QNN News

QNN Summer 2025 Newsletter

Dear QNN Group Members, Alums and Affiliates, Happy summer everyone! We have had lots of news and comings and goings.  First of all, Karl has now been in his role as EE Faculty Head for a few months and is getting used to it, finding more time to interact with the...

read more

New Publication: A superconducting full-wave bridge rectifier

A new publication written by the group on a superconducting diode was just published in Nature Electronics. Matteo Castellani, Owen Medeiros, Alessandro Buzzi, Reed A. Foster, Marco Colangelo and Karl K. Berggren.M. Castellani, O. Medeiros, A. Buzzi, R. A. Foster, M....

read more