29 citations · 157 across the 14 of their papers we have counts for
12 papers · 1 filter
Perturbative versus Non-Perturbative Renormalization
S. Hariharakrishnan, U. D. Jentschura, I. G. Marian +2
Approximated functional renormalization group (FRG) equations lead to regulator-dependent -functions, in analogy to the scheme-dependence of the perturbative renormalization gro…
Time Evolution and Thermal Renormalization Group Flow in Cosmology
Istvan Gabor Marian, Andrea Trombettoni, Istvan Nandori
Time-evolution of the Universe as described by the Friedmann equation can be coupled to equations of motion of matter fields. Quantum effects may be incorporated to improve these c…
Renormalisation of non-differentiable potentials
J. Alexandre, N. Defenu, G. Grigolia +5
Non-differentiable potentials, such as the V-shaped (linear) potential, appear in various areas of physics. For example, the effective action for branons in the framework of the br…
Vacuum Energy and Renormalization of the Field-Independent Term
I. G. Marian, U. D. Jentschura, N. Defenu +2
Due to its construction, the nonperturbative renormalization group (RG) evolution of the constant, field-independent term (which is constant with respect to field variations but de…
Comparison of renormalization group schemes for sine-Gordon type models
I. Nandori, S. Nagy, K. Sailer +1
The scheme-dependence of the renormalization group (RG) flow has been investigated in the local potential approximation for two-dimensional periodic, sine-Gordon type field-theoric…
On the renormalization of the bosonized multi-flavor Schwinger model
I. Nandori
The phase structure of the bosonized multi-flavor Schwinger model is investigated by means of the differential renormalization group (RG) method. In the limit of small fermion mass…