String Theory Journal Club

I will present progress on formulating an effective description of the quantum butterfly effect at late times. After discussing maximally chaotic examples, I will turn to a particular limit of the SYK model that displays sub-maximal chaos and discuss its effective description. The final results can be matched in detail to stringy corrections to the gravitational eikonal S-matrix in holographic CFTs, including a stringy Regge trajectory, bulk to boundary propagators, and multi-string effects that are unexplored holographically.