In what year was the physicist who introduced the 't Hooft operator born?
't Hooft operator In theoretical physics, a 't Hooft operator, introduced by Gerard 't Hooft in the 1978 paper "On the phase transition towards permanent quark confinement", is a dual version of the Wilson loop in which the electromagnetic potential "A" is replaced by its electromagnetic dual "A", where the exterior derivative of "A" is equal to the Hodge dual of the exterior derivative of "A". In d spacetime dimensions, "A" is a (d-3)-form and so the 't Hooft operator is the integral of "A" over a (d-3)-dimensional surface.
Gordon Walter Semenoff Gordon Walter Semenoff (born July 11, 1953), {'1': ", '2': ", '3': ", '4': "} , {'1': ", '2': ", '3': ", '4': "} , is a theoretical physicist and Professor of Physics at the University of British Columbia, Canada. He is known for his research on quantum mechanics, quantum field theory, statistical mechanics and string theory and is particularly famous for his co-invention, together with Antti Niemi, of the parity anomaly in odd-dimensional gauge field theories and for his pioneering work on graphene. He is also well known for development of thermal field theory, the application of index theorems and their generalizations in quantum field theory and string theory, notably with respect to the duality between string theories and gauge field theories.