Higher-dimensional models in gravitational theories of quartic Lagrangians | Zendy

K. Kleidis | Zendy; A. Kuiroukidis | Zendy; D. Papadopoulos | Zendy; H. Varvoglis | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Higher-dimensional models in gravitational theories of quartic Lagrangians

Author(s) -

K. Kleidis,

A. Kuiroukidis,

D. Papadopoulos,

H. Varvoglis

Publication year - 1997

Publication title -

journal of mathematical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.708

H-Index - 119

eISSN - 1089-7658

pISSN - 0022-2488

DOI - 10.1063/1.532041

Subject(s) - physics , quartic function , curvature , gravitation , mathematical physics , metric expansion of space , classical mechanics , gravitational field , de sitter universe , de sitter space , einstein field equations , inflation (cosmology) , tensor (intrinsic definition) , universe , space (punctuation) , theoretical physics , cosmology , mathematics , dark energy , geometry , quantum mechanics , pure mathematics , linguistics , philosophy

Ten-dimensional models, arising from a gravitational action which includes terms up to the fourth order in curvature tensor, are discussed. The spacetime consists of one timelike dimension and two maximally symmetric subspaces, filled with matter in the form of an anisotropic fluid. Numerical integration of the cosmological field equations indicates that exponential, as well as power law, solutions are possible. We carry out a dynamical study of the results in the H_{ext} - H_{int} plane and confirm the existence of "attractors" in the evolution of the Universe. Those attracting points correspond to "extended De Sitter" spacetimes, in which the external space exhibits inflationary expansion, while the internal one contracts

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research