Hans Frauenfelder

Hans Frauenfelder (born July 28, 1922) is a Swiss-American physicist and biophysicist. He is known for his discovery of perturbed angular correlation (PAC) in 1951. In the modern day, PAC spectroscopy is widely used in the study of condensed matter physics.  

Frauenfelder was born in Schaffhausen, Switzerland. He studied at ETH Zurich.

Within biophysics, he is known for experiment and theory in understanding the dynamical behavior of protein tertiary structure. In 1992, Frauenfelder won the Max Delbruck Prize.

Frauenfelder is a member of the National Academy of Sciences, the American Philosophical Society, and a Foreign Member of the Royal Swedish Academy of Sciences.

References

Other websites
 References on Perturbed Angular Correlation (PAC)
 PAC Spectroscopy 
 Frauenfelder's homepage 
 Frauenfelder's math genealogy

Category:1922 births
Category:Living people
Category:Naturalized citizens of the United States
Category:American physicists
Category:American biologists
Category:Swiss physicists
Category:People from Schaffhausen
Category:American centenarians