A nonlocal RG framework for the 3D Wilson-Fisher fixed point solves two-variable master equations at three-loop order to obtain Delta_phi* approx 0.981, Delta_varphi* approx 0.415, eta approx 0.038, and nu approx 0.6317.
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Taming the 3D Wilson-Fisher Fixed Point via Nonlocal Effective Action
A nonlocal RG framework for the 3D Wilson-Fisher fixed point solves two-variable master equations at three-loop order to obtain Delta_phi* approx 0.981, Delta_varphi* approx 0.415, eta approx 0.038, and nu approx 0.6317.