搜索结果: 1-4 共查到“相对论与引力场 Wormholes”相关记录4条 . 查询时间(0.062 秒)
Wormholes respecting energy conditions and solitonic shells in DGP gravity
Wormholes solitonic shells energy conditions
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2010/3/18
We build spherically symmetric wormholes within the DGP theory. We calculate the energy localized on the shell, and we find that for certain values of the parameters wormholes could be supported by ma...
Thin-shell wormholes from charged black holes in generalized dilaton-axion gravity
Thin-shell wormholes black holes
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2010/3/17
This paper discusses a new type of thin-shell wormhole constructed by applying the cut-and-paste technique to two copies of a charged black hole in generalized dilaton-axion gravity, which was inspire...
Phantom Wormholes in (2+1)-dimensions
Lower dimensional gravity Wormhole Phantom energy
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2010/3/17
In this paper, we have constructed a (2+1)-dimensional wormhole using inhomogeneous and anisotropic distribution of phantom energy. We have determined the exact form of the equation of state of phanto...
General class of vacuum Brans-Dicke wormholes
vacuum Brans-Dicke wormholes f(R) gravity
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2010/3/17
Recently, traversable wormhole geometries were constructed in the context of f(R) gravity. The latter is equivalent to a Brans-Dicke theory with a coupling parameter w=0, which is apparently excluded ...