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题名: Wormholes supported by phantom energy from Shan-Chen cosmological fluids
作者: Wang, D ;  Meng, XH
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2016
卷号: 76, 期号:3, 页码:171
学科分类: Physics
DOI: http://dx.doi.org/10.1140/epjc/s10052-016-4024-x
通讯作者: Wang, D (reprint author), Nankai Univ, Chern Inst Math, Div Theoret Phys, Tianjin 300071, Peoples R China. ;  Meng, XH (reprint author), Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China. ;  Meng, XH (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100080, Peoples R China.
文章类型: Article
英文摘要: In the present paper, the exact solutions of spherically symmetrical Einstein field equations describing wormholes supported by phantom energy that violates the null energy condition from Shan-Chen background fluid are obtained. We have considered the important case of the model parameter psi approximate to 1, which corresponds to the "saturation effect", and this regime corresponds to an effective form of "asymptotic freedom" for the fluids, but occurring at cosmological rather than subnuclear scales. Then we investigate the allowed range for the values of the model parameters g and omega when the spacetime metrics describe wormholes and discuss the possible singularities of the solutions, finding that the obtained spacetimes are geodesically complete. Furthermore, we construct two traversable wormholes through matching our obtained interior solutions to the exterior Schwarzschild solutions and analyze the traversablities of thewormholes. Finally, we consider the case of anisotropic pressure and discover that the transverse pressure also crosses the phantom divide -1 with the growth of the wormhole dimension, and it tends to be the same as the radial pressure with the growth of the wormhole radius.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: EQUATION-OF-STATE ;  BULK VISCOSITY ;  DARK ENERGY ;  FRIEDMANN COSMOLOGY ;  POSSIBLE EXISTENCE ;  SUPERNOVAE ;  UNIVERSE ;  GRAVITY ;  MODEL ;  CONSTANT
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/311006/21719
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Wang, D,Meng, XH. Wormholes supported by phantom energy from Shan-Chen cosmological fluids[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(3):171.
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