We continue the study of AdS loop amplitudes in the spectral representation and in position space. We compute the finite coupling 4-point function in position space for the large-N conformal Gross Neveu model on AdS₃. The resummation of loop bubble diagrams gives a result proportional to a tree-level contact diagram. We show that certain families of fermionic Witten diagrams can be easily computed from their companion scalar diagrams. Thus, many of the results and identities of [1] are extended to the case of external fermions. We derive a spectral representation for ladder diagrams in AdS. Finally, we compute various bulk 2-point correlators, extending the results of [1].

我们继续研究频谱表示和位置空间中的 AdS 环路幅度。我们为AdS ₃上的大N共形 Gross Neveu 模型计算位置空间中的有限耦合 4 点函数。循环气泡图的求和给出与树级接触图成比例的结果。我们表明，可以从它们的伴随标量图轻松计算某些费米子 Witten 图系列。因此，[1] 的许多结果和恒等式扩展到外部费米子的情况。我们推导出 AdS 中梯形图的频谱表示。最后，我们计算了各种批量 2 点相关器，扩展了 [1] 的结果。