1997/08/20 by Peter E. Haagensen, Haagensen, Peter E.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9708110
16 pages, TeX. Invited talk presented at the NATO Workshop ``New Developments in Quantum Field Theory'', Zakopane, Poland, June 14--20, 1997
arxiv created 1997/08/20 · arxiv updated 2009/11/30
The requirement that duality and renormalization group transformations commute as motions in the space of a theory has recently been explored to extract information about the renormalization flows in different statistical and field theoretical systems. After a review of what has been accomplished in the context of 2d sigma models, new results are presented which set up the stage for a fully generic calculation at two-loop order, with particular emphasis on the question of scheme dependence.