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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.
Wormholes supported by phantom energy from Shan-Chen cosmological fluids
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
AbstractIn 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.
2016
Volume76Issue:3Pages:171
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1140/epjc/s10052-016-4024-x
Indexed BySCI
Funding OrganizationNational Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21719
Collection理论物理所科研产出_SCI论文
Corresponding AuthorWang, 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.
Recommended Citation
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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