Who did the 1957 winner of the Nobel Prize in Physics work with on the problem of magnetic flux?
Byers-Yang theorem In quantum mechanics, the Byers-Yang theorem states that all physical properties of a doubly connected system (an annulus) enclosing a magnetic flux formula_1 through the opening are periodic in the flux with period formula_2 (the magnetic flux quantum). The theorem was first stated and proven by Nina Byers and Chen-Ning Yang (1961), and further developed by Felix Bloch (1970).
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.