Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-12-13
Physics
High Energy Physics
High Energy Physics - Theory
11 pages, extended version of a talk at the International Workshop "Lie Theory and Its Applications in Physics VII" (Varna, Bu
Scientific paper
Global gauge symmetry becomes more intricate in low dimensional QFT. We survey the mathematical concepts leading to the relevant analogues of the (D=4) Doplicher-Haag-Roberts theory of superselection sectors and internal symmetry. We also review a recently uncovered duality between braid and quantum group representations in an extension of the chiral su(2)_k WZNW model for nonnegative integer level k.
Furlan Paolo
Hadjiivanov Ludmil
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