Conical Morris-Thorne wormholes with a global monopole charge

被引:39
|
作者
Jusufi, Kimet [1 ,2 ]
机构
[1] State Univ Tetovo, Dept Phys, Ilinden St Nn, Tetovo 1200, Macedonia
[2] Ss Cyril & Methodius Univ, Fac Nat Sci & Math, Inst Phys, Arhimedova 3, Skopje 1000, Macedonia
关键词
THIN-SHELL WORMHOLES; GENERAL-RELATIVITY; ELLIS WORMHOLE; BLACK-HOLE; SPACETIME; FIELD; GEOMETRY; STRINGS; TIME;
D O I
10.1103/PhysRevD.98.044016
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this paper, we have established an asymptotically conical Morris-Thorne wormhole solution that is supported by an anisotropic matter fluid and a global monopole charge in the framework of a 1 + 3 dimensional gravity that is minimally coupled to a triplet of scalar fields phi(a), which results from the breaking of a global O(3) symmetry. For the anisotropic matter fluid, we have considered the equation of state (EoS) given by P-r = omega rho with a consequence omega < -1, that implies a so-called phantom energy at the throat of the wormhole, which violates the energy conditions. In addition, we study the weak gravitational lensing effect using the Gauss-Bonnet theorem (GBT) applied to the wormhole optical geometry. We show that the total deflection angle consists of a term given by 4 pi(2)eta(2), which is independent of the impact parameter b, and an additional term, which depends on the radius of the wormhole throat b(0) as well as the dimensionless constant zeta.
引用
收藏
页数:9
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