Correlation Functions of the SU(infinity) Principal Chiral Model

Research paper by Axel Cortes Cubero, Peter Orland

Indexed on: 20 Jul '13Published on: 20 Jul '13Published in: High Energy Physics - Theory


We obtain exact matrix elements of physical operators of the (1+1)-dimensional nonlinear sigma model of an SU(N)-valued bare field, in the 't Hooft limit N goes to infinity. Specifically, all the form factors of the Noether current and the stress-energy-momentum tensor are found with an integrable bootstrap method. These form factors are used to find vacuum expectation values of products of these operators.