ITP OpenIR  > SCI期刊论文
Zhi, HZ; Shi, MJ; Meng, XH; Zhang, LZ; Meng, XH (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
A New Global 1-form in Lyra Geometric Cosmos Model
Source PublicationINTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Language英语
KeywordCosmological Models Ia Supernovae Manifold Constant Universe Deceleration Lambda Omega
AbstractDark energy phenomena has inspired lots of investigations on the cosmological constant problems. In order to understand its origin and properties as well as its impacts on universe's evolutions, there are many approaches to modify the well-known General Relativity, such as the Weyl-Lyra Geometry. In the well studied cosmology model within Lyra geometry, there is a problem that the first law of thermodynamics is violated. To unravel this issue, if we use the effective density and pressure in the Lyra cosmology model to preserve the first law of thermodynamics in the cosmos, the former 1-form (beta, 0, 0, 0) cannot give a proper vacuum behavior. In this paper, the auxiliary 1-form is modified to overcome this difficulty. It can be shown that the complex terms in the field equation derived from the regime of Lyra Geometric 3/2 phi(mu)phi(nu) - 3/4 delta(mu)(nu)phi(alpha)phi(alpha) with our new 1-form could behave just as the cosmological constant. This work can be regarded as a new exploration on a possible origin of the cosmological constant from a Lyra cosmology model.
2014
ISSN0020-7748
Volume53Issue:11Pages:4002-4011
Subject AreaPhysics
DOI10.1007/s10773-014-2151-4
Indexed BySCI
Funding OrganizationNatural Science Foundation of China [11075078, 10675062]; Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; Chinese Academy of Sciences (CAS) [KJCX2.YW.W10] ; Natural Science Foundation of China [11075078, 10675062]; Chinese Academy of Sciences (CAS) [KJCX2.YW.W10]
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15594
CollectionSCI期刊论文
Corresponding AuthorMeng, XH (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
Recommended Citation
GB/T 7714
Zhi, HZ,Shi, MJ,Meng, XH,et al. A New Global 1-form in Lyra Geometric Cosmos Model[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,2014,53(11):4002-4011.
APA Zhi, HZ,Shi, MJ,Meng, XH,Zhang, LZ,&Meng, XH .(2014).A New Global 1-form in Lyra Geometric Cosmos Model.INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,53(11),4002-4011.
MLA Zhi, HZ,et al."A New Global 1-form in Lyra Geometric Cosmos Model".INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS 53.11(2014):4002-4011.
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