Pismo uredniku
Accelerated expansion of the higher-dimensional spatially flat universe
Rami Ahmad El-Nabulsi
; College of Mathematics and Information Science, Qujing Normal University, Qujing, Yunnan 655011, PR China
Sažetak
We discuss in this work two independent scenarios of a higher-dimensional spatially flat universe. In the 1st scenario, we conjecture that the cosmological constant varies according to the ansatzs Λ = ρ α, α ∈ R, where ρ is the energy density assumed to vary like ρ = DHm, (D, m) ∈ R. In the 2nd scenario, we conjecture that the cosmological constant varies like Λ = Gβ , β ∈ R, where G is the gravitational coupling constant. Both scenarios reveal many interesting and appealing consequences which are discussed in some details.
Ključne riječi
higher-dimensional cosmology; dark energy; accelerated expansion
Hrčak ID:
304612
URI
Datum izdavanja:
1.11.2010.
Posjeta: 356 *