24 citations · 43 across the 4 of their papers we have counts for
4 papers
Berezinskii-Kosterlitz-Thouless transition and criticality of an elliptic deformation of the sine-Gordon model
N. Defenu, V. Bacsó, I. G. Márián +2
We introduce and study the properties of a periodic model interpolating between the sine-- and the sinh--Gordon theories in dimensions. This model shows the peculiarities, du…
Pseudo-Periodic Natural Higgs Inflation
I. G. Marian, N. Defenu, U. D. Jentschura +2
Inflationary cosmology represents a well-studied framework to describe the expansion of space in the early universe, as it explains the origin of the large-scale structure of the c…
-function and central charge of the sine-Gordon model from the non-perturbative renormalization group flow
V. Bacsó, N. Defenu, A. Trombettoni +1
In this paper we study the -function of the sine-Gordon model taking explicitly into account the periodicity of the interaction potential. The integration of the -function al…
Truncation Effects in the Functional Renormalization Group Study of Spontaneous Symmetry Breaking
N. Defenu, P. Mati, I. G. Marian +2
We study the occurrence of spontaneous symmetry breaking (SSB) for O(N) models using functional renormalization group techniques. We show that even the local potential approximatio…