Stalin Prize, formulated the theory of multiple particle collisions of high-energy beams, introduced the concept of the combined parity, developed a theory of two-component neutrino, formulated a theory for "quantum fluid" Fermi-type. He was awarded the Max Planck medal and a prize of Fritz London. Awarded the Nobel Prize in Physics in 1962 for the "revolutionary theories in physics of condensed matter, especially liquid helium."
