Specifically, by applying the technique of Bogoliubov transformations to quantum field theory with a changing gravitational field, he discovered the physical mechanism now known as gravitational particle production.
Natural transformation | Economic Transformation Programme | Allied Command Transformation | Tschirnhaus transformation | Transformation between distributions in time–frequency analysis | Office of Force Transformation | MOF Model to Text Transformation Language | diffusionless transformation | Bogoliubov transformation |