ITP OpenIR  > 理论物理所2016年知识产出
Wormholes supported by phantom energy from Shan-Chen cosmological fluids
Wang, D; Meng, XH; 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.
2016
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号76期号:3页码:171
文章类型Article
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.
学科领域Physics
资助者National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China
DOIhttp://dx.doi.org/10.1140/epjc/s10052-016-4024-x
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
语种英语
资助者National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China
WOS类目Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21719
专题理论物理所2016年知识产出
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.
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GB/T 7714
Wang, D,Meng, XH,Wang, D ,et al. Wormholes supported by phantom energy from Shan-Chen cosmological fluids[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(3):171.
APA Wang, D,Meng, XH,Wang, D ,Meng, XH ,&Meng, XH .(2016).Wormholes supported by phantom energy from Shan-Chen cosmological fluids.EUROPEAN PHYSICAL JOURNAL C,76(3),171.
MLA Wang, D,et al."Wormholes supported by phantom energy from Shan-Chen cosmological fluids".EUROPEAN PHYSICAL JOURNAL C 76.3(2016):171.
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