Quantum Dynamics and Gravity: Stringy Effects in SYK Scrambling

This lecture covers the topic of quantum dynamics and quantum gravity, focusing on the stringy effects in the Sachdev-Ye-Kitaev (SYK) model scrambling. The instructor discusses the connection between quantum dynamics, gravity, and many-body systems, highlighting the three-way bridge connecting these disciplines. Various concepts such as quantum information, hydrodynamic transport, and operator scrambling are explored, shedding light on the bound on chaos and the scattering of shockwaves. The lecture delves into the collective field description of SYK, the eikonal approximation, and the path integral for out-of-time-ordered correlators (OTOCs). It concludes with a discussion on the finite lambda (λ) scenario and the implications of string theory in understanding quantum chaos.