Gerardus ("Gerard") 't Hooft [ut-hooft] (The prefix ’t is pronounced as ‘ut’ and stands for ‘het’) (born July 5, 1946) is a professor in theoretical physics at Utrecht University, the Netherlands. He is a 1999 Nobel Prize laureate (together with Martinus Veltman) "for elucidating the quantum structure of electroweak interactions in physics". Asteroid 9491 Thooft is named in his honor; he has written a constitution for its future inhabitants. He was awarded the Lorentz Medal in 1986.
't Hooft-Polyakov monopole
't Hooft symbol