Abstract

We use results on Virasoro conformal blocks to study chaotic dynamics in CFT\$\_2\$ at large central charge c. The Lyapunov exponent \$łambda\_L\$, which is a diagnostic for the early onset of chaos, receives \$1/c\$ corrections that may be interpreted as \$łambda\_L = 2 \pi\beta łeft( 1 + 12c \right)\$. However, out of time order correlators receive other equally important \$1/c\$ suppressed contributions that do not have such a simple interpretation. We revisit the proof of a bound on \$łambda\_L\$ that emerges at large \$c\$, focusing on CFT\$\_2\$ and explaining why our results do not conflict with the analysis leading to the bound. We also comment on relationships between chaos, scattering, causality, and bulk locality.

Links and resources

Tags