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MP: Theoretische und Mathematische Grundlagen der Physik

MP 1: Hauptvorträge I

MP 1.1: Invited Talk

Tuesday, March 8, 2005, 10:15–11:10, TU MA043

Knotted soliton-a candidate for the QCD string — •Ludvig Faddeev — Steklov Institute of Mathematics, 27, Fontanka, 191011, St.Petersburg, Russia

An exact change of variables for the Yang-Mills lagrangian in 3+1 dimensional space-time is proposed. It reveals the degrees of freedom of a particular nonlinear sigma model, which was shown to have solitonic excitations, concentrated around the knot in space. It is proposed that this string-like object could be interpreted as a QCD string.