A theoretical particle physicist who established asymptotic freedom for a class of Yang-Mills theories in 1973. The effective interaction becomes weak at sufficiently high energy, allowing perturbation theory to be useful in a theory that has strong interactions at longer distances. This supplies a key theoretical route from quantum chromodynamics to quantitative short-distance predictions.[ref]
Reliable Perturbative Results for Strong Interactions? by Hugh David Politzer. Abstract and short-distance perturbative calculation
