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arXiv · 2012.11255

Correlation functions and quantum measures of descendant states

Enrico M. Brehm·Matteo Broccoli
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Abstract

We discuss a computer implementation of a recursive formula to calculate correlation functions of descendant states in two-dimensional CFT. This allows us to obtain any $N$-point function of vacuum descendants, or to express the correlator as a differential operator acting on the respective primary correlator in case of non-vacuum descendants. With this tool at hand, we then study some entanglement and distinguishability measures between descendant states, namely the R\'enyi entropy, trace square distance and sandwiched R\'enyi divergence. Our results provide a test of the conjectured R\'enyi QNEC and new tools to analyse the holographic description of descendant states at large $c$.

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Enrico M. Brehm, Matteo Broccoli. 2020-12-21. Correlation functions and quantum measures of descendant states. https://doi.org/10.1007/jhep04(2021)227

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