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Nuclear Physics B
We show that the proper inclusion of soft reparameterization modes in the Sachdev-Ye-Kitaev model of N randomly interacting Majorana fermions reduces its long-time behavior to that of Liouville quantum mechanics. As a result, all zero temperature correlation functions decay with the universal exponent ∝τ^-3/2 for times larger than the inverse single particle level spacing τ≫ N N. In the particular case of the single particle Green function this behavior is manifestation of the zero-biasdoi:10.1016/j.nuclphysb.2016.08.002 fatcat:oliy7ccgejhglogv3frjmsz2zq