Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2001-03-28
Mod.Phys.Lett. A16 (2001) 2545-2555
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages, LaTex file, no figures. Discussion on time dependent cosmological constant in section two clarified. References adde
Scientific paper
10.1142/S0217732301006053
Motivated by brane cosmology we solve the Einstein equations with a time
dependent cosmological constant. Assuming that at an early epoch the vacuum
energy scales as $1/logt $, we show that the universe passes from a fast
growing phase (inflation) to an expanding phase in a natural way.
Papantonopoulos Eleftherios
Pappa Ioanna
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