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arXiv · 1412.5123

Two-dimensional conformal field theory and the butterfly effect

Daniel A. Roberts·Douglas Stanford
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Abstract

We study chaotic dynamics in two-dimensional conformal field theory through out-of-time order thermal correlators of the form $\langle W(t)VW(t)V\rangle$. We reproduce bulk calculations similar to those of [1], by studying the large $c$ Virasoro identity block. The contribution of this block to the above correlation function begins to decrease exponentially after a delay of $\sim t_* - \frac{\beta}{2\pi}\log \beta^2E_w E_v$, where $t_*$ is the scrambling time $\frac{\beta}{2\pi}\log c$, and $E_w,E_v$ are the energy scales of the $W,V$ operators.

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Daniel A. Roberts, Douglas Stanford. 2014-12-16. Two-dimensional conformal field theory and the butterfly effect. https://doi.org/10.1103/physrevlett.115.131603

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