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 …

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 study of the Berezinskii-Kosterlitz-Thouless transition in two-dimensional| φ| 4 models
can be performed in several representations, and the amplitude-phase (AP) Madelung …

A bstract We performed the renormalization group analysis of the quantum Einstein gravity
in the deep infrared regime for different types of extensions of the model. It is shown that an …

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 …

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 …

Known results on two-dimensional quantum electrodynamics (QED 2) have been used to
study the dependence of functional renormalization group equations on renormalization …

We study in this paper the sine-Gordon model using functional renormalization group at
local potential approximation using different renormalization group (RG) schemes. In d= 2 …