3 papers
hep-th2019
Renormalization in Minkowski space-time
I. Steib, S. Nagy, J. Polonyi
The multiplicative and the functional renormalization group methods are applied for the four dimensional scalar theory in Minkowski space-time. It is argued that the appropriate ch…
hep-th2018
Renormalization of the bilocal sine-Gordon model
I. Steib, S. Nagy
The functional renormalization group treatment is presented for the two-dimensional sine-Gordon model by including a bilocal term in the potential, which contributes to the flow at…
hep-th2017
Regulator dependence of fixed points in quantum Einstein gravity with truncation
S. Nagy, B. Fazekas, Z. Peli +2
We performed a functional renormalization group analysis for the quantum Einstein gravity including a quadratic term in the curvature. The ultraviolet non-gaussian fixed point and…