Abstract
In this Letter, we consider the collinear limit of gluon scattering amplitudes in planar N=4 super-Yang-Mills theory at strong coupling. We argue that in this limit scattering amplitudes map into correlators of twist fields in the two dimensional nonlinear O(6) sigma model, similar to those appearing in recent studies of entanglement entropy. We provide evidence for this assertion by combining the intuition springing from the string world-sheet picture and the predictions coming from the operator product expansion series. One of the main implications of these considerations is that scattering amplitudes receive equally important contributions at strong coupling from both the minimal string area and its fluctuations in the sphere.
Original language | English |
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Article number | 261604 |
Journal | Physical Review Letters |
Volume | 113 |
Issue number | 26 |
DOIs | |
State | Published - 31 Dec 2014 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy