Abstract
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, ϕ, 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.
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29 January 2021
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Liu, J., Meltzer, D., Poland, D. et al. The Lorentzian inversion formula and the spectrum of the 3d O(2) CFT. J. High Energ. Phys. 2020, 115 (2020). https://doi.org/10.1007/JHEP09(2020)115
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DOI: https://doi.org/10.1007/JHEP09(2020)115