Physics Group Meeting

In finite entropy systems such as black holes, real-time partition functions do not decay to zero at late times. It is a challenge to derive this non-decaying behavior starting from the path integral over the master fields of a large N theory. I will describe a candidate explanation at varying levels of precision for a variant of the SYK model, for the SYK model itself, and for 2d gravity. Work in progress with Saad and Shenker.