Abstract
In this article we consider n gluon color ordered, planar amplitudes in
= 4 super Yang Mills at strong 't Hooft coupling. These amplitudes
are approximated by classical surfaces in AdS5 space. We compute the value
of the amplitude for a particular kinematic configuration for a large number of
gluons and
find that the result disagrees with a recent guess for the exact value of the amplitude.
Our results are still compatible with a possible relation between amplitudes and Wilson loops.
In addition, we also give a prescription for computing processes
involving local operators and asymptotic states with a fixed
number of gluons. As a byproduct, we also obtain a string theory prescription for computing
the dual of the ordinary Wilson loop, TrPei∮A, with no couplings to the
scalars. We also evaluate the quark-antiquark potential at two loops.
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