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Conference on Integrability in Gauge and String Theory 2010
Conference on Integrability in Gauge and String Theory 2010
from 28 June 2010 to 02 July 2010 Nordita
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An operator product expansion for null polygonal Wilson loops
We consider polygonal Wilson loops with null edges in conformal gauge theories.
We derive an OPE-like expansion when several successive lines of the polygon 
are becoming aligned.
The limit corresponds to a collinear, or multicollinear, limit and we explain the 
of all the subleading corrections, going beyond the leading terms that were 
previously considered.
These subleading corrections are governed by excitations of high spin operators, 
or excitations
of a flux tube that goes between two Wilson lines. The discussion is valid for any 
conformal gauge
theory, for any coupling and  in any dimension.
For N=4  super Yang Mills we check this expansion at strong coupling and at 
two loops at weak coupling .
We also make predictions for the remainder function at higher loops.
We will also discuss aspects of the excitations around the relevant flux tube  or 
"sea of derivatives''
Id: 264
Place: Nordita
Room: Oskar Klein lecture hall
Starting date:
30-Jun-2010   14:30
Duration: 01h00'
Presenters: MALDACENA, Juan
Material: slide Slides

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