ITP OpenIR  > 理论物理所科研产出  > SCI论文
Panigrahi, D.; Chatterjee, S.; Zhang, Y. Z.; Chatterjee, S , Jadavpur Univ, Relativ & Cosmol Res Ctr, Calcutta 700032, W Bengal, India
Accelerating universe as window for extra dimensions
Source PublicationINTERNATIONAL JOURNAL OF MODERN PHYSICS A
KeywordDeceleration Cosmology Energy Brane
AbstractHomogeneous cosmological solutions are obtained in five-dimensional (5D) space-time assuming equations of state p = kp and p(1) = gamma p where p is the isotropic 3-pressure and p(1), that for the fifth dimension. Using different values for the constants k and gamma many known solutions are rediscovered. Further the current acceleration of the universe has led us to investigate higher dimensional gravity theory, which is able to explain acceleration from a theoretical viewpoint without the need of introducing dark energy by hand. We also extend a recent work of Mohammedi where using a special form of the extra dimensional scale factor a new interpretation of the higher dimensional equations of motion is given and the concept of an effective 4D pressure is introduced. Interestingly the 5D matter field remains regular while the effective negative pressure is responsible for the inflation. Relaxing the assumptions of two equations of state we also present a class of solutions which provide early deceleration followed by a late acceleration in a unified manner. Relevant to point out that in this case our cosmology apparently mimics the well-known quintessence scenario fuelled by a generalized Chaplygin-type of fluid where a smooth transition from a dust dominated model to a de Sitter-like one takes place. Depending on the relative magnitude of the different constants appearing in our solutions we show that some of the cases are amenable to the desirable property of dimensional reduction.
2006
ISSN0217-751X
Volume21Issue:31Pages:6491-6511
Subject AreaPhysics
Indexed BySCI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5814
Collection理论物理所科研产出_SCI论文
Corresponding AuthorChatterjee, S , Jadavpur Univ, Relativ & Cosmol Res Ctr, Calcutta 700032, W Bengal, India
Recommended Citation
GB/T 7714
Panigrahi, D.,Chatterjee, S.,Zhang, Y. Z.,et al. Accelerating universe as window for extra dimensions[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2006,21(31):6491-6511.
APA Panigrahi, D.,Chatterjee, S.,Zhang, Y. Z.,&Chatterjee, S , Jadavpur Univ, Relativ & Cosmol Res Ctr, Calcutta 700032, W Bengal, India.(2006).Accelerating universe as window for extra dimensions.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,21(31),6491-6511.
MLA Panigrahi, D.,et al."Accelerating universe as window for extra dimensions".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 21.31(2006):6491-6511.
Files in This Item:
File Name/Size DocType Version Access License
Accelerating univers(288KB) 开放获取LicenseApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Panigrahi, D.]'s Articles
[Chatterjee, S.]'s Articles
[Zhang, Y. Z.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Panigrahi, D.]'s Articles
[Chatterjee, S.]'s Articles
[Zhang, Y. Z.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Panigrahi, D.]'s Articles
[Chatterjee, S.]'s Articles
[Zhang, Y. Z.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.