Hagen Kleinert

I collaborated with Feynman and wrote a paper with him which led to the most accurate theory of critical exponents so far.

The prediction was confirmed in a satellite experiment by Lipa et al., published under the title "Specific heat of liquid helium in zero gravity very near the lambda point" in Phys. Rev. B 68, 174518 (2003).

Since I had to tell the story repeatedly, most recently for the French edition of Science,  I have set up a web page with all the info:


Hagen Kleinert
Institut fuer Theoretische Physik
Freie Universitaet Berlin