 He was appointed associate professor of physics at Bar-Ilan University until 1986, when he moved to the Hebrew University of Jerusalem as professor of physics.Sompolinsky’s research in theoretical physics covered the fields of phase transitions, critical phenomena, nonlinear dynamics and the statistical mechanics of spin glasses.Since the mid-1980s, he has pioneered the new field of computational neuroscience, introducing methods and concepts of theoretical physics to the study of neuronal circuits, memory, learning and neuronal information processing.