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marcus
#1517
Jun23-11, 07:21 PM
Astronomy
Sci Advisor
PF Gold
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P: 23,102
brief mention (not Loop-and-allied QG, but may be of general interest):

http://arxiv.org/abs/1106.4789
Knot Invariants from Four-Dimensional Gauge Theory
Davide Gaiotto, Edward Witten
(Submitted on 23 Jun 2011)
It has been argued based on electric-magnetic duality and other ingredients that the Jones polynomial of a knot in three dimensions can be computed by counting the solutions of certain gauge theory equations in four dimensions. Here, we attempt to verify this directly by analyzing the equations and counting their solutions, without reference to any quantum dualities. After suitably perturbing the equations to make their behavior more generic, we are able to get a fairly clear understanding of how the Jones polynomial emerges...
117 pages