Donald Robert Yennie (March 4, 1924 – April 14, 1993) was an American theoretical physicist and professor at Cornell University.
[2] Raised in Midland Park, New Jersey, Yennie graduated from Pompton Lakes High School in 1941.
[4] His Ph.D. advisor was Nobel prize recipient Hideki Yukawa.
In 1961, with Steven Frautschi and Hiroshi Suura, he elucidated the role of infrared photons properly summed in high-energy quantum electrodynamics.
[6] This work was one of the keys to solving the problem of infrared divergences in gauge theories.