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FIZIKA B 16 (2007) 4, 197-204
 
LETTER TO THE EDITOR
LOW-ENERGY EFFECTIVE STRING COSMOLOGY: TRANSITION FROM INFLATION TO
DEFLATION TO ACCELERATED EXPANSION
RAMI AHMAD EL-NABULSI
Department of Nuclear and Energy Engineering, Cheju National University, Ara-Dong 1, Jeju 690-756, South Korea
E-mail Address: nabulsiahmadrami@yahoo.fr
Received 5 July 2007; Revised manuscript received 15 December 2007
Accepted 19 December 2007 Online 15 February 2008
Low energy effective string cosmology in higher dimensions with a specific type
of quantum-like potential is investigated and some features are explored in some
details. It was shown that in four and five dimensions, the universe may exist
from inflation gracefully with no reheating, deflates in the radiation dominated
epoch and finally expands acceleratedly in the dust epoch while the scalar field
decays in time.
PACS numbers: 04.50.+h, 04.60.-m, 98.80.-k
UDC 524.83
Keywords: low energy effective string actions, quantum-like potential,
deflation, accelerated expansion
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