SL(2,R) Chern-Simons, Liouville, and Gauge Theory on Duality Walls

Details SL(2,R) Chern-Simons, Liouville, and Gauge Theory on Duality Walls SL(2,R) Chern-Simons, Liouville, and Gauge Theory on Duality Walls

2011-03-29

arxiv.org/abs/1103.5748v2

JHEP 1108:135,2011

Physics

High Energy Physics

High Energy Physics - Theory

53+1 pages, 14 figures; v2: typos corrected, references added

Scientific paper

10.1007/JHEP08(2011)135

We propose an equivalence of the partition functions of two different 3d gauge theories. On one side of the correspondence we consider the partition function of 3d SL(2,R) Chern-Simons theory on a 3-manifold, obtained as a punctured Riemann surface times an interval. On the other side we have a partition function of a 3d N=2 superconformal field theory on S^3, which is realized as a duality domain wall in a 4d gauge theory on S^4. We sketch the proof of this conjecture using connections with quantum Liouville theory and quantum Teichmuller theory, and study in detail the example of the once-punctured torus. Motivated by these results we advocate a direct Chern-Simons interpretation of the ingredients of (a generalization of) the Alday-Gaiotto-Tachikawa relation. We also comment on M5-brane realizations as well as on possible generalizations of our proposals.

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