2 papers
hep-th2019
Functional renormalization group approach and gauge dependence in gravity theories
Vítor F. Barra, Peter M. Lavrov, Eduardo Antonio dos Reis +2
We investigate the gauge symmetry and gauge fixing dependence properties of the effective average action for quantum gravity models of general form. Using the background field form…
hep-th2019
Renormalization of Yukawa model with sterile scalar in curved space-time
Vítor Fernandes Barra, Iosif L. Buchbinder, Jarme Gomes Joaquim +2
We explore the classical and quantum properties of a sterile scalar field coupled to copies of Dirac fermions in an external gravitational field. We find that the self-interact…