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Global Renormalization Group
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abstract
The motivation and the challenge in applying the renormalization group for systems with several scaling regimes is briefly outlined. The four dimensional $\phi^4$ model serves as an example where a nontrivial low energy scaling regime is identified in the vicinity of the spinodal instability region. It is pointed out that the effective theory defined in the vicinity of the spinodal instability offers an amplification mechanism, a precursor of the condensation that can be used to explore nonuniversal forces at high energies.
Forward citations
Cited by 2 Pith papers
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Gravity and the Higgs boson mass
For a scalar field on a sphere, the Fradkin-Vilkovisky measure combined with an on-shell cutoff identification converts the famous quadratic mass divergence into a logarithmic one.
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On the RG flow of the Newton and cosmological constant
The paper rebuts a comment by arguing that the absence of an asymptotic-safety fixed point in the authors' RG equations is due to the relation between cutoff and running scale, not to their measure choice.
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