High Quality Content by WIKIPEDIA articles! Günter Nimtz (born 1936) is a German physicist, working at the 2nd Physics Institute at the University of Cologne (Universität zu Köln) in Germany. He has investigated narrow-gap semiconductors and liquid crystals and was engaged in several interdisciplinary studies on the effect of non-ionizing electromagnetic radiation in biological systems. His international reputation mainly results from experiments that he claims show that particles may travel faster than the speed of light (c) when undergoing quantum tunneling.