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Title: The Lorentzian inversion formula and the spectrum of the 3d O(2) CFT

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [2]
  1. California Institute of Technology (CalTech), Pasadena, CA (United States); California Institute of Technology (CalTech), Pasadena, CA (United States). Inst. for Quantum Information and Matter
  2. California Institute of Technology (CalTech), Pasadena, CA (United States)
  3. Yale Univ., New Haven, CT (United States)

We study the spectrum and OPE coefficients of the three-dimensional critical O(2) model, using four-point functions of the leading scalars with charges 0, 1, and 2 (s, $$\phi$$, and t). We obtain numerical predictions for low-twist OPE data in several charge sectors using the extremal functional method. We compare the results to analytical estimates using the Lorentzian inversion formula and a small amount of numerical input. We find agreement between the analytic and numerical predictions. We also give evidence that certain scalar operators lie on double-twist Regge trajectories and obtain estimates for the leading Regge intercepts of the O(2) model.

Research Organization:
California Institute of Technology (CalTech), Pasadena, CA (United States); Yale Univ., New Haven, CT (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); Simons Foundation
Grant/Contract Number:
SC0019085; SC0020318; 488657; 488651
OSTI ID:
1712432
Journal Information:
Journal of High Energy Physics (Online), Vol. 2020, Issue 9; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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