Static traversable wormholes in f (R, T) = R+2α ln T gravity

被引:37
|
作者
Godani, Nisha [1 ]
Samanta, Gauranga C. [2 ]
机构
[1] GLA Univ, Inst Appl Sci & Humanities, Dept Math, Mathura, Uttar Pradesh, India
[2] BITS Pilani KK Birla Goa Campus, Dept Math, Pilani, Goa, India
关键词
f(R; T); Gravity; Energy conditions; Traversable wormhole; DARK FLUID WDF; COSMOLOGICAL MODELS; PERFECT FLUID; F(R; T); THEORY; F(R) GRAVITY; ENERGY; INFLATION;
D O I
10.1016/j.cjph.2019.09.009
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Traversable wormholes, studied by Morris and Thorne [3] in general relativity, are investigated in this research paper in f(R, T) gravity by introducing a new form of non-linear f(R, T) function. By using this novel function, the Einstein's field equations in f(R, T) gravity are derived. To obtain the exact wormhole solutions, the relations p(t) = omega rho and p(r) = sinh(r)p(t), where rho is the energy density, p(r) is the radial pressure and p(t) is the tangential pressure, are used. Other than these relations, two forms of shape function defined in literature are used, and their suitability is examined by exploring the regions of validity of null, weak, strong and dominant energy conditions. Consequently, the radius of the throat or the spherical region, with satisfied energy conditions, is determined and the presence of exotic matter is minimized.
引用
收藏
页码:161 / 171
页数:11
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