We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.

Durham University

Department of Mathematical Sciences

Academic Staff

Publication details for Professor Emeritus Paul Mansfield

Mansfield, P. (1997), A Large Distance Expansion for Quantum Field Theory, in Dremin, I.M. & Semikhatov, A.M. eds, 2nd International A.D. Sakharov Conference, Moscow, Russia, May 20-24, 1996. Moscow, Russia, World Scientific, Moscow, 490-493.

Author(s) from Durham


Using analyticity of the vacuum wave-functional under complex scalings, the vacuum of a quantum field theory may be reconstructed from a derivative expansion valid for slowly varying fields. This enables the eigenvalue problem for the Hamiltonian to be reduced to algebraic equations. Applied to Yang-Mills theory this expansion leads to a confining force between quarks.