Scale Dependent Local Non-Gaussianity from Loops
  We analyze multi-field inflationary systems which yield strongly scale
dependent non-Gaussianity with a shape that is very close to the local shape.
As in usual multi-field models, the non-Gaussianity arises from the non-linear
transfer of scalar field fluctuations to curvature perturbations. Here we
consider models in which higher order terms (loops) dominate over the lowest
order source of non-linearity. The magnitude of non-Gaussianity depends on an
infrared cutoff which is determined by our observational probes measuring
non-Gaussianity. In our models, the running is positive and large (n_{NG} ~
0.2) on CMB scales. The magnitude of the bispectrum is maximally of order
O(100), and grows on small scales. This can lead to interesting signals for
large scale structure.
