  We address the question to what extent JIMWLK evolution is capable of taking
into account angular correlations in a high energy hadronic wave function. Our
conclusion is that angular (and indeed other) correlations in the wave function
cannot be reliably calculated without taking into account Pomeron loops in the
evolution. As an example we study numerically the energy evolution of angular
correlations between dipole scattering amplitudes in the framework of the large
$N_c$ approximation to JIMWLK evolution (the "`projectile dipole model"').
Target correlations are introduced via averaging over (isotropic) ensemble of
anisotropic initial conditions. We find that correlations disappear very
quickly with rapidity even inside the saturation radius. This is in accordance
with our physical picture of JIMWLK evolution. The actual correlations inside
the saturation radius in the target QCD wave function, on the other hand should
remain sizable at any rapidity.
