Brane f(R) gravity cosmologies
- Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin (Poland)
By the application of the generalized Israel junction conditions we derive cosmological equations for the fourth-order f(R) brane gravity and study their cosmological solutions. We show that there exists a nonstatic solution which describes a four-dimensional de Sitter (dS{sub 4}) brane embedded in a five-dimensional anti-de Sitter (AdS{sub 5}) bulk for a vanishing Weyl tensor contribution. On the other hand, for the case of a nonvanishing Weyl tensor contribution, there exists a static brane solution only. We claim that in order to get some more general nonstatic f(R) brane configurations, one needs to admit a dynamical matter energy-momentum tensor in the bulk rather than just a bulk cosmological constant.
- OSTI ID:
- 21408060
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 81, Issue 12; Other Information: DOI: 10.1103/PhysRevD.81.123527; (c) 2010 The American Physical Society; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cosmological dynamics of brane f(R) gravity
Surface Casimir densities and induced cosmological constant on parallel branes in AdS spacetime
Related Subjects
COSMOLOGY AND ASTRONOMY
ANTI DE SITTER SPACE
CONFIGURATION
COSMOLOGICAL CONSTANT
COSMOLOGICAL MODELS
COSMOLOGY
DE SITTER SPACE
ENERGY-MOMENTUM TENSOR
EQUATIONS
FOUR-DIMENSIONAL CALCULATIONS
GRAVITATION
MANY-DIMENSIONAL CALCULATIONS
MATHEMATICAL SOLUTIONS
MATTER
MATHEMATICAL MODELS
MATHEMATICAL SPACE
SPACE
TENSORS