Inflation, bifurcations of nonlinear curvature Lagrangians and dark energy

Autor:	Mielke, Eckehard W., Kusmartsev, Fjodor V., Schunck, Franz E.
Rok vydání:	2007
Předmět:	General Relativity and Quantum Cosmology Astrophysics
Druh dokumentu:	Working Paper
DOI:	10.1142/9789812834300_0039
Popis:	A possible equivalence of scalar dark matter, the inflaton, and modified gravity is analyzed. After a conformal mapping, the dependence of the effective Lagrangian on the curvature is not only singular but also bifurcates into several almost Einsteinian spaces, distinguished only by a different effective gravitational strength and cosmological constant. A swallow tail catastrophe in the bifurcation set indicates the possibility for the coexistence of different Einsteinian domains in our Universe. This `triple unification' may shed new light on the nature and large scale distribution not only of dark matter but also on `dark energy', regarded as an effective cosmological constant, and inflation. Comment: 20 pages, 8 figures, Proceedings of the 11th Marcel Grossmann Meeting (MG11) in Berlin, Germany, July 23-29, 2006
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0704.1135 Zobrazit plný text záznamu View this record from Arxiv