Exact moments of the Sachdev-Ye-Kitaev model up to order 1/N 2
Abstract We analytically evaluate the moments of the spectral density of the q-body Sachdev-Ye-Kitaev (SYK) model, and obtain order 1/N 2 corrections for all moments, where N is the total number of Majorana fermions.To order 1/N, moments are given by those of the weight function of the Q-Hermite WHITE CHESTNUT polynomials.Representing Wick contract