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High Energy Physics - Theory

Title: Correlation functions and quantum measures of descendant states

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 $c$.
Comments: v2: matches published version 31+22 pages, 10 figures, Mathematica code attached in v1
Subjects: High Energy Physics - Theory (hep-th); Statistical Mechanics (cond-mat.stat-mech); Computational Physics (physics.comp-ph); Quantum Physics (quant-ph)
Journal reference: JHEP 04 (2021) 227
DOI: 10.1007/JHEP04(2021)227
Cite as: arXiv:2012.11255 [hep-th]
  (or arXiv:2012.11255v2 [hep-th] for this version)

Submission history

From: Enrico Brehm [view email]
[v1] Mon, 21 Dec 2020 11:12:53 GMT (629kb,AD)
[v2] Fri, 21 May 2021 12:24:31 GMT (596kb,D)

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