Karl-Heinz Bennemann, Professor of Physics, Department of Physics, Freie Universitat Berlin, John B. Ketterson, Fayerweather Professor of Physics, Department of Physics and Astronomy, Northwestern University
K. H. Bennemann is Professor of Physics at the FU Berlin (1971-). He graduated from the University of Illinois at Urbana, where he worked with J. Bardeen. He has also been a research Sloan-fellow. He is internationally known in particular for research on magnetism, non-linear optics, superconductivity and ultrafast dynamics in condensed matter.
J. B. Ketterson is Professor of Physics and Astronomy at Northwestern University (1974- ). He was earlier at Argonne National Laboratory (1962 - 1974). He received his PhD from the University of Chicago (1962) under Prof. A. W. Lawson. He specializes in condensed matter physics (electronic properties of metals, liquid helium, superconductivity, cold trapped gasses, magnetism, liquid crystals and Langmuir films, and non linear optics).
Both authors are well known for their classic books on Superfluid He and Superconductivity.