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4 papers · 2 filters
Primordial Gravitational Wave Signals in Modified Cosmologies
Nicolás Bernal, Anish Ghoshal, Fazlollah Hajkarim +1
Modified expansion rates in the early Universe prior to big bang nucleosynthesis are common in modified gravity theories, and can have a significant impact on the generation of dar…
Dynamical analysis of cosmological models with non-Abelian gauge vector fields
Alejandro Guarnizo, J. Bayron Orjuela-Quintana, César A. Valenzuela-Toledo
In this paper we study some models where non-Abelian gauge vector fields endowed with a SU(2) group representation are the unique source of inflation and dark energy. These models…
Anisotropic Einstein Yang-Mills Higgs Dark Energy
J. Bayron Orjuela-Quintana, Miguel Alvarez, Cesar A. Valenzuela-Toledo +1
In the context of the dark energy scenario, the Einstein Yang-Mills Higgs model in the SO(3) representation was studied for the first time by M. Rinaldi (see JCAP 1510, 023 (2015))…
Coupled Multi-Proca Vector Dark Energy
L. Gabriel Gomez, Yeinzon Rodriguez
We study a new class of vector dark energy models where multi-Proca fields are coupled to cold dark matter by the term where is a gener…