539 citations · 2.6k across the 56 of their papers we have counts for
35 papers · 1 filter
Functional Dimensional Regularization
Piero Beretta, Alessandro Codello
We introduce and develop Functional Dimensional Regularization (FDR), a novel functional renormalization group (RG) framework that extends the principles of dimensional regularizat…
Exploring multi-parameter optimization in FRG
A. Codello, G. P. Vacca, D. Zarrilli
The use of nonperturbative Wilsonian functional renormalization group (FRG) equations within an unavoidable approximation scheme produces physical results that depend on the choice…
Functional Dimensional Regularization for O(N) Models
P. Beretta, A. Codello
The novel functional dimensional regularization (FDR) scheme has proven capable of yielding results that are competitive with the state-of-the-art in the computation of critical ex…
Rethinking Dimensional Regularization in Critical Phenomena
P. Beretta, A. Codello
We show that it is possible to use dimensional regularization (DR) beyond the usual -expansion in the context of renormalization group (RG) calculations in Critical Ph…
Structural aspects of FRG in quantum tunnelling computations
Alfio Bonanno, Alessandro Codello, Dario Zappala'
We probe both the unidimensional quartic harmonic oscillator and the double well potential through a numerical analysis of the Functional Renormalization Group flow equations trunc…
Multicritical hypercubic models
Riccardo Ben Alì Zinati, Alessandro Codello, Omar Zanusso
We study renormalization group multicritical fixed points in the -expansion of scalar field theories characterized by the symmetry of the (hyper)cubic point group . After r…