Ludwig Faddeev — physics with roots in the Fluent
Ludwig Faddeev was a Soviet-Russian mathematical physicist born in Leningrad who made foundational contributions to quantum field theory, the three-body problem, and integrable systems. His Faddeev equations for three-body quantum mechanics and his work on the path integral in gauge theories are among the most important results in 20th-century theoretical physics.
Tracing the roots — USSR
Born in Leningrad in 1934 to a family of mathematicians — his father Dmitry Faddeev was also a distinguished mathematician — Ludwig spent his career at the Steklov Mathematical Institute in Leningrad/St. Petersburg. He represents the pinnacle of the Soviet mathematical-physics tradition that produced some of the 20th century's most profound theoretical results.