Renormalized g-log (g) double expansion for the invariant ϕ⁴-trajectory in three dimensions
Wieczerkowski, Christian
Original · EN
We study the invariant unstable manifold of the trivial renormalization group fixed point tangent to the ϕ⁴-vertex in three dimensions. We parametrize it by a running ϕ⁴-coupling with linear step β-function. It is shown to have a renormalized double expansion in the running coupling and its logarithm.
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