A Clifford-gravity-based cosmology, dark matter and dark energy

Abstract:

A Clifford-gravity-based model is exploited to build a generalized action (beyond the current ones used in the literature) and arrive at relevant numerical results which are consistent with the presently-observed de Sitter accelerating expansion of the universe driven by a very small vacuum energy density ρ obs ~ 10-120(MP)4 (MP is the Planck mass) and provide promising dark energy/matter candidates in terms of the 16 scalars corresponding to the degrees of freedom associated with a Cl(3, 1)-algebra-valued scalar field Φ in four dimensions.

Año de publicación:

2015

Keywords:

• cosmology
• inflation
• Grand unification
• strings
• Clifford algebras
• Gravity
• Yang-Mills

Fuente:

scopus