Strings, Branes, Schwarzian Action and Maximal Chaos

Understand

In this article, we present explicit evidence that maximal chaos occurs for a generic, probe quark-like defect degrees of freedom, in a strongly coupled large $N_c$ gauge theory.

• In holography, this corresponds to the dynamics of open string degrees of freedom, in the background of a closed string geometry.
• In this context, we explicitly show that a Schwarzian effective action for the soft sector emerges and couples with other modes, in the infra-red.
• This is manifest on an open string worldsheet, as well as a D$1$-brane world-volume, embedded in AdS$_3$.