Chern-Simons Gauge Theory As A String Theory

Details Chern-Simons Gauge Theory As A String Theory Chern-Simons Gauge Theory As A String Theory

1992-07-28

arxiv.org/abs/hep-th/9207094v2

Prog.Math.133:637-678,1995

Physics

High Energy Physics

High Energy Physics - Theory

50 pages; the sole change in the 2003 resubmission is inclusion of the figures

Scientific paper

Certain two dimensional topological field theories can be interpreted as string theory backgrounds in which the usual decoupling of ghosts and matter does not hold. Like ordinary string models, these can sometimes be given space-time interpretations. For instance, three-dimensional Chern-Simons gauge theory can arise as a string theory. The world-sheet model in this case involves a topological sigma model. Instanton contributions to the sigma model give rise to Wilson line insertions in the space-time Chern-Simons theory. A certain holomorphic analog of Chern-Simons theory can also arise as a string theory.

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