Monte Carlo reconstruction of the 2D phi^4 two-particle vertex shows a multidimensional soft sector, a near-contact fully irreducible vertex, and validates local DGammaA only away from criticality.
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The two-particle-irreducible vertex of the two-dimensional lattice $\phi^4$ model across the Ising transition
Monte Carlo reconstruction of the 2D phi^4 two-particle vertex shows a multidimensional soft sector, a near-contact fully irreducible vertex, and validates local DGammaA only away from criticality.