Realizing fast scramblers - CANCELLED

This seminar has been cancelled.

Fast scramblers are strongly interacting quantum systems that are highly chaotic even at low temperatures. They are believed to correspond to black holes via holography, so it is interesting to realize them in a lab. I will review some recent proposals of doing so: one using graphene flakes [1], and another using cold atoms [2]. Both attempts had in mind the Sachdev-Ye-Kitaev (SYK) model, one of the simplest (and best-known) fast scramblers. However, both ended up realizing a ``low-rank SYK model'' [3] instead. I will explain what that means and how that affects the success of the proposals.