 Alexander Markovich Polyakov

Alexander Markovich Polyakov is a prominent Russian theoretical physicist known for his influential contributions to the fields of quantum field theory, string theory, and statistical mechanics. Born on April 6, 1945, he is particularly recognized for his work on the theory of two-dimensional gravity and the concept of "strings" in theoretical physics. One of Polyakov's key achievements is the development of the Polyakov action, which describes the dynamics of two-dimensional surfaces in string theory.