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- A B Goncharov, M Spradlin, C Vergu, A Volovich
- Physical review letters
- 2010

We present a compact analytic formula for the two-loop six-particle maximally helicity violating remainder function (equivalently, the two-loop lightlike hexagon Wilson loop) in N=4 supersymmetric Yang-Mills theory in terms of the classical polylogarithm functions Lik with cross ratios of momentum twistor invariants as their arguments. In deriving our… (More)

- Chrysostomos Kalousios, C. Vergu, Anastasia Volovich
- 2009

AdS4/CFT3 duality relating IIA string theory on AdS4 × CP to N = 6 superconformal Chern-Simons theory provides an arena for studying aspects of integrability in a new potentially exactly solvable system. In this paper we explore the tree-level worldsheet scattering for strings on AdS4 × CP. We compute all bosonic four-, fiveand six-point amplitudes in the… (More)

This thesis is concerned with the study of scattering amplitudes in four-dimensional conformal field theories, more particularly the N = 4 super-Yang-Mills theory. We study this theory first at tree level by using twistor space techniques and review the twistor string models that were proposed to describe it. Then, we turn to the issue of iteration… (More)

- Cristian Vergu
- 2009

Scattering amplitudes in the maximally supersymmetric N = 4 gauge theory are known to possess some remarkable features. The reasons for this are not completely understood, but some possible candidates are: the integrability properties of the theory, the existence of a gravitational dual and the existence of a twistor space description. I will not try to… (More)

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