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Scientific article
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Generalized spectral form factors and the statistics of heavy operators

Published inThe journal of high energy physics, vol. 2022, no. 11, 145
Publication date2022
First online date2022-11-25
Abstract

The spectral form factor is a powerful probe of quantum chaos that diagnoses the statistics of energy levels, but is blind to other features of a theory such as matrix elements of operators or OPE coefficients in conformal field theories. In this paper, we introduce generalized spectral form factors: new probes of quantum chaos sensitive to the dynamical data of a theory. These quantities can be studied using random matrix theory and an effective theory of quantum chaos. We focus our attention on a particular combination of heavy-heavy-heavy OPE coefficients that generalizes the genus-2 partition function of two-dimensional CFTs, for which we define a form factor. Assuming that random matrix theory applies to chaotic CFTs, we probe heavy-heavy-heavy OPE coefficients and find statistical correlations that agree with the OPE Randomness Hypothesis: these coefficients have a random tensor component. The EFT of quantum chaos predicts that the genus-2 form factor displays a ramp and a plateau. Our results suggest that this is a common property of generalized spectral form factors.

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Keywords
  • AdS-CFT Correspondence
  • Matrix Models
  • Conformal Field Models in String Theory
  • Field theory: conformal
  • Matrix model: random
  • Dimension: 2
  • Spectral
  • Form factor
  • Operator product expansion
  • Chaos
  • Statistics
  • Partition function
  • Effective field theory
  • Energy levels
Citation (ISO format)
BELIN, Alexandre et al. Generalized spectral form factors and the statistics of heavy operators. In: The journal of high energy physics, 2022, vol. 2022, n° 11, p. 145. doi: 10.1007/jhep11(2022)145
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ISSN of the journal1029-8479
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