Dark Matter in a bi-metric universe
Sign Up to like & getrecommendations! Published in 2023 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271823500591
Abstract: We study the possibility to describe dark matter in a model of the universe with two scale factors and a non-standard Poisson bracket structure characterized by the deformation parameter \kappa. The dark matter evolution is… read more here.
Keywords: matter; matter metric; metric universe; dark matter ... See more keywords
A Rosen-type bi-metric universe and its physical properties
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Geometric Methods in Modern Physics"
DOI: 10.1142/s0219887818501748
Abstract: The paper studies a spacetime endowed with two stationary metrics. The first one is a Riemannian one, called the R-Schwarzschild metric. It satisfies Einstein vacuum field equations, describes correctly the slow down of clocks in… read more here.
Keywords: metric universe; type metric; field; tensor ... See more keywords