Publications (59)
An Operator Product Expansion for Polygonal null Wilson Loops
Luis F. Alday, Davide Gaiotto, Juan Maldacena +2
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. T…
OPE for all Helicity Amplitudes
Benjamin Basso, Joao Caetano, Lucia Cordova +2
We extend the Operator Product Expansion (OPE) for scattering amplitudes in planar N=4 SYM to account for all possible helicities of the external states. This is done by constructi…
Beyond the Singularity of the 2-D Charged Black Hole
Amit Giveon, Eliezer Rabinovici, Amit Sever
Two dimensional charged black holes in string theory can be obtained as exact (SL(2,R)xU(1))/U(1) quotient CFTs. The geometry of the quotient is induced from that of the group, and…
Planar scattering amplitudes from Wilson loops
John McGreevy, Amit Sever
We derive an expression for parton scattering amplitudes of planar gauge theory in terms of sums of Wilson loops. We study in detail the example of Yang-Mills theory with an adjoin…
Tailoring Three-Point Functions and Integrability III. Classical Tunneling
Nikolay Gromov, Amit Sever, Pedro Vieira
We compute three-point functions between one large classical operator and two large BPS operators at weak coupling. We consider operators made out of the scalars of N=4 SYM, dual t…
Bootstrapping Smooth Conformal Defects in Chern-Simons-Matter Theories
Barak Gabai, Amit Sever, De-liang Zhong
The expectation value of a smooth conformal line defect in a CFT is a conformal invariant functional of its path in space-time. For example, in large holographic theories, thes…