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

https://hrcak.srce.hr/304612

Datum izdavanja:

1.11.2010.

Podaci na drugim jezicima: hrvatski

Posjeta: 97 *