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사범대학
과학교육과
Journal papers
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Higher dimensional cosmological model with a phantom field
Title
Higher dimensional cosmological model with a phantom field
Authors
Hong S.-T.
;
Lee J.
;
Lee T.H.
;
Oh P.
Ewha Authors
홍순태
SCOPUS Author ID
홍순태
Issue Date
2008
Journal Title
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998
Citation
Physical Review D - Particles, Fields, Gravitation and Cosmology vol. 78, no. 4
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
We consider a higher dimensional gravity theory with a negative kinetic energy scalar field and a cosmological constant. We find that the theory admits an exact cosmological solution for the scale factor of our universe. It has the feature that the universe undergoes a continuous transition from deceleration to acceleration at some finite time. This transition time can be interpreted as that of recent acceleration of our universe. © 2008 The American Physical Society.
DOI
10.1103/PhysRevD.78.047503
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