INVESTIGADORES
BELLINI Mauricio
artículos
Título:
Gravitational waves from the birth of the universe with Extended General Relativity
Autor/es:
MAURICIO BELLINI; LUIS SANTIAGO RIDAO
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2022 vol. 825 p. 136901 - 136901
ISSN:
0370-2693
Resumen:
During preinflation, the Hubble parameter increases from an initial null value and the expansion of theuniverse is produced by the effect of back-reaction effects. This fact is viewed in the global dynamics as a cosmological parameter which induces the initial expansion in a non-conservative General Relativity theory. In this framework, we study the production and evolution of primordial gravitational waves during preinflation using extended General Relativity with boundary terms included, that describe the sources of these waves.