Various aspects of the Exact Renormalization Group (ERG) are explored, starting with a
review of the concepts underpinning the framework and the circumstances under which it is …

A short introduction is given on the functional renormalization group method, putting
emphasis on its nonperturbative aspects. The method enables to find nontrivial fixed points …

We extend the theory of nonthermal fixed points to the case of anomalously slow universal
scaling dynamics according to the sine-Gordon model. This entails the derivation of a kinetic …

The renormalization group flow is presented for the two-dimensional sine–Gordon model
within the framework of the functional renormalization group method by including the wave …

The requirement for the absence of spontaneous symmetry breaking in the d= 1 dimension
has been used to optimize the regulator dependence of functional renormalization group …

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 …

We determined the critical exponent ν of the scalar O (N) model with a strategy based on the
definition of the correlation length in the infrared limit. The functional renormalization group …

It is pointed out that increasingly attractive interactions, represented by partially concave
local potential in the Lagrangian, may lead to the degeneracy of the blocked, renormalized …

Functional renormalization group methods formulated in the real-time formalism are applied
to the O (N) symmetric quantum anharmonic oscillator, considered as a 0+ 1 dimensional …

Generalized universality in the massive sine-Gordon model Page 1 Generalized universality
in the massive sine-Gordon model S. Nagy,1 I. Nándori,2 J. Polonyi,3 and K. Sailer1 …