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Journal Article | PUBDB-2024-07636 |
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2024
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Please use a persistent id in citations: doi:10.1007/JHEP03(2024)136 doi:10.3204/PUBDB-2024-07636
Report No.: DESY-23-175; arXiv:2311.02742
Abstract: We combine perturbation theory with analytic and numerical bootstrap techniques to study the critical point of the long-range Ising (LRI) model in two and threedimensions. This model interpolates between short-range Ising (SRI) and mean-feld behaviour. We use the Lorentzian inversion formula to compute infnitely many three-loopcorrections in the two-dimensional LRI near the mean-feld end. We further exploit theexact OPE relations that follow from bulk locality of the LRI to compute infnitely manytwo-loop corrections near the mean-feld end, as well as some one-loop corrections near SRI.By including such exact OPE relations in the crossing equations for LRI we set up a veryconstrained bootstrap problem, which we solve numerically using SDPB. We fnd a family ofsharp kinks for two- and three-dimensional theories which compare favourably to perturbativepredictions, as well as some Monte Carlo simulations for the two-dimensional LRI.
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Analytic and numerical bootstrap for the long-range Ising model
[10.3204/PUBDB-2023-06458]
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