Eigen desired to study Physics, but since returning soldiers who were previously enrolled received priority, he enrolled in Geophysics. He earned an undergraduate degree and entered graduate study in natural sciences. One of his advisors was Werner Heisenberg, the noted proponent of the uncertainty principle. He received his doctorate in 1951.
Eigen received his Ph.D. at the University of Göttingen in 1951 under supervision of Arnold Eucken. In 1964 he presented the results of his research at a meeting of the Faraday Society in London. His findings demonstrated for the first time that it was possible to determine the rates of chemical reactions that occurred during time intervals as brief as a nanosecond.