CTQM Nielsen Lectures

Professor Ludwig Faddeev
St. Petersburg Department of the Steklov Institute of Mathematics, Russia

Poster for the Lectures.

Nielsen Lecture I

What is the problem of mass for quantum Yang-Mills theory?

Wednesday, 21 March, 2007 at 14:30 in Auditorium F at the Department of Mathematical Sciences, Faculty of Science, University of Aarhus.

Abstract: The problem, mentioned in the title, is listed as one of the Millenium Problems by the Clay Mathematical Institute. To the wide mathematical audience it is much less known than the other six problems. I shall try to explain its formulation and argue that it deserves to be in this list.

Video recording

Lecture I

Nielsen Lecture II

Three dimensional Knot-like solitons and their hypothetical role in quantum Yang-Mills theory

Thursday, 22 March, 2007 at 14:30 in Auditorium F at the Department of Mathematical Sciences, Faculty of Science, University of Aarhus.

Abstract: It is a general belief that, in Quantum Chromodynamics, quarks are connected by strings composed of Yang-Mills fields. A natural question is what happens to these strings if the quarks are absent, so we deal with pure Yang-Mills quantum theory. It is argued that among the variables, describing the Yang-Mills fields, there are those, corresponding to nonlinear systems, allowing the solitons to concentrate along closed knotted rings. These excitations could be the remnants of the QCD strings.

Video recording

Lecture II

Reception

CTQM will host a reception after Nielsen lecture I.

Further information

For further information, please contact

CTQM Director Jørgen Ellegaard Andersen,

Revised 25.05.2007