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题名: Traversable geometric dark energy wormholes constrained by astrophysical observations
作者: Wang, D ;  Meng, XH
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2016
卷号: 76, 期号:9, 页码:484
学科分类: Physics
DOI: http://dx.doi.org/10.1140/epjc/s10052-016-4321-4
通讯作者: Wang, D (reprint author), Nankai Univ, Chern Inst Math, Div Theoret Phys, Tianjin 300071, Peoples R China.
文章类型: Article
英文摘要: In this paper, we introduce the astrophysical observations into the wormhole research. We investigate the evolution behavior of the dark energy equation of state parameter. by constraining the dark energy model, so that we can determine in which stage of the universe wormholes can exist by using the condition omega < -1. As a concrete instance, we study the Ricci dark energy (RDE) traversable wormholes constrained by astrophysical observations. Particularly, we find from Fig. 5 of this work, when the effective equation of state parameter omega(X) < -1 (or z < 0.109), i.e., the null energy condition (NEC) is violated clearly, the wormholes will exist (open). Subsequently, six specific solutions of statically and spherically symmetric traversable wormhole supported by the RDE fluids are obtained. Except for the case of a constant redshift function, where the solution is not only asymptotically flat but also traversable, the five remaining solutions are all non-asymptotically flat, therefore, the exotic matter from the RDE fluids is spatially distributed in the vicinity of the throat. Furthermore, we analyze the physical characteristics and properties of the RDE traversable wormholes. It is worth noting that, using the astrophysical observations, we obtain the constraints on the parameters of the RDE model, explore the types of exotic RDE fluids in different stages of the universe, limit the number of available models for wormhole research, reduce theoretically the number of the wormholes corresponding to different parameters for the RDE model, and provide a clearer picture for wormhole investigations from the new perspective of observational cosmology.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: EQUATION-OF-STATE ;  BARYON ACOUSTIC-OSCILLATIONS ;  PROBE WMAP OBSERVATIONS ;  BULK VISCOSITY ;  COSMOLOGICAL-CONSTANT ;  CURVATURE QUINTESSENCE ;  FRIEDMANN COSMOLOGY ;  CHAPLYGIN-GAS ;  SCALAR FIELD ;  MODEL
收录类别: SCI
项目资助者: National Science Foundation of China
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21540
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Recommended Citation:
Wang, D,Meng, XH. Traversable geometric dark energy wormholes constrained by astrophysical observations[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(9):484.
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