Extra dimensions and vacuum dark energy models - INSPIRE

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Extra dimensions and vacuum dark energy models

Chi-Yi Chen
(
- Shanghai, Astron. Observ. and
- Beijing, GUCAS and
- Beijing Observ. and
- Beijing, Inst. Theor. Phys.
)
,
You-Gen Shen
(
- Shanghai, Astron. Observ. and
- Beijing, GUCAS and
- Beijing Observ. and
- Beijing, Inst. Theor. Phys.
)

2004

3 pages

Published in:

Chin.Phys.Lett. 21 (2004) 2320-2322

DOI:

10.1088/0256-307X/21/11/069

View in:

ADS Abstract Service

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Abstract: (IOP)

The role of vacuum energy or cosmological constant in cosmology is discussed in a kind of nontrivial higher-dimensional model. Under the framework of Einstein's gravity, we obtain the corresponding equations of motion and find that the cosmological constant and vacuum energy in the full regime does not drive its acceleration, but decelerates the expansion of the universe. The dimension of space is required to ben= 3if we regard vacuum energy or cosmological constant as the candidate to drive the accelerated expansion of the universe.

98.80.Cq
11.10.Kk
cosmological constant
vacuum state: energy state
space-time: higher-dimensional
astrophysics: acceleration
membrane model

References(13)

Figures(0)

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