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<p>We study energy correlators and other event shapes in states created by operators with large global U(1) charge <i>Q</i> in Conformal Field Theories. Focusing on theories whose large charge sector is described by the superfluid Effective Field Theory (EFT), we develop a systematic framework to compute event shapes within the EFT. As formerly observed, event shapes at leading order in 1/<i>Q</i> factorize into a product of classical expectation values determined by symmetry. In contrast, the subleading contribution to energy-energy and charge-charge correlators is a nontrivial prediction of the EFT, which we compute explicitly. Our results reveal a sharp collinear enhancement of the correlation between detectors, induced by the propagation of sound. We also generalize our findings to a broad class of event shapes.</p>

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Conformal collider physics at large charge

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月23日

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  • Gabriel Cuomo,
  • Eren Firat,
  • Filippo Nardi,
  • Lorenzo Ricci

摘要

We study energy correlators and other event shapes in states created by operators with large global U(1) charge Q in Conformal Field Theories. Focusing on theories whose large charge sector is described by the superfluid Effective Field Theory (EFT), we develop a systematic framework to compute event shapes within the EFT. As formerly observed, event shapes at leading order in 1/Q factorize into a product of classical expectation values determined by symmetry. In contrast, the subleading contribution to energy-energy and charge-charge correlators is a nontrivial prediction of the EFT, which we compute explicitly. Our results reveal a sharp collinear enhancement of the correlation between detectors, induced by the propagation of sound. We also generalize our findings to a broad class of event shapes.