Single-scale renormalisation group improvement of multi-scale effective potentials
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2018)014
Abstract: A bstractWe present a new method for renormalisation group improvement of the effective potential of a quantum field theory with an arbitrary number of scalar fields. The method amounts to solving the renormalisation group equation… read more here.
Keywords: renormalisation group; effective potential; group improvement; renormalisation ... See more keywords
Renormalisation group improvement in the stochastic formalism
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/09/023
Abstract: We investigate compatibility between the stochastic infrared (IR) resummation of light test fields on inflationary spacetimes and renormalisation group running of the ultra-violet (UV) physics. Using the Wilsonian approach, we derive improved stochastic Langevin and… read more here.
Keywords: renormalisation group; physics; group improvement; formalism ... See more keywords