Artículos de revistas
On the spacetime connecting two aeons in conformal cyclic cosmology
Fecha
2015-12-01Registro en:
General Relativity And Gravitation. New York: Springer/plenum Publishers, v. 47, n. 12, 17 p., 2015.
0001-7701
10.1007/s10714-015-1991-4
WOS:000365414400010
WOS000365414400010.pdf
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
As quotient spaces, Minkowski and de Sitter are fundamental, non-gravitational spacetimes for the construction of physical theories. When general relativity is constructed on a de Sitter spacetime, the usual Riemannian structure is replaced by a more general structure called de Sitter-Cartan geometry. In the contraction limit of an infinite cosmological term, the de Sitter-Cartan spacetime reduces to a singular, flat, conformal invariant four-dimensional cone spacetime, in which our ordinary notions of time interval and space distance are absent. It is shown that such spacetime satisfies all properties, including the Weyl curvature hypothesis, necessary to play the role of the bridging spacetime connecting two aeons in Penrose's conformal cyclic cosmology.