Superconductivity is arguably the most fascinating state of matter. Superconductors are characterized by zero electrical resistance, permanent currents, perfect diamagnetism, a perfectly inductive low-frequency electromagnetic response and display a range of astounding macroscopic quantum effects that are rooted in the coherent nature of the superconducting state. Superconducting pairing states can form with unconventional symmetries, undergo exotic topological order in low-dimensional systems, form fractionalized vortices or solitary waves, break time reversal symmetry or give rise to novel Majorana bound states.
At the Karlsruhe Institute of Technology several research groups distributed over multiple Institutes have an active and highly visible research programs in the area of superconductivity. In addition, the Institute for Technical Physics operates a laboratory for high-school students.
Here we summarize the activities in the area of superconductivity currently under way at KIT, ordered by Institutes. Numerous joint publications and dual appointments of demonstrate the highly interactive nature of this research.