Thick brane in mimetic f(T) gravity

Thick brane in mimetic f(T) gravity
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模拟 f(T) 重力中的厚膜

DOI:
10.1016/j.physletb.2019.135099
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发表时间:
2018-05
期刊:
影响因子:
4.4
通讯作者:
Liu Yu-Xiao
Liu Yu-Xiao
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Guo Wen-Di;Zhong Yi;Yang Ke;Sui Tao-Tao;Liu Yu-Xiao

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我们将拟f(T)理论应用到厚膜模型中。我们采用拉格朗日乘子形式,得到了相应的场运动方程。我们找到了不同类型的f(T)的解。此外,我们还考虑了Vielbein的张量扰动,研究了模拟f(T)膜的稳定性。文中还研究了定位问题,证明了所有解的四维重力都是可以恢复的。扭转效应表明,对于f(T)的多项式型,零模与f(T)=T的零模有分裂,而指数型f(T)的情况与f(T)=T的情况相似。
We apply the mimetic f (T) theory into the thick brane model. We take the Lagrange multiplier formulation of the action and get the corresponding field equations of motion. We find solutions for different kinds of f (T). Besides, we investigate the stability of the mimetic f (T) brane by considering the tensor perturbations of the vielbein. Localization problem is also studied and it is shown that the four-dimensional gravity can be recovered for all the solutions. The effects of the torsion show that for the polynomial form of f (T), the zero mode has a split compared with that of f (T)= T, but the situations for the exponential form of f (T) are similar to that of f (T)= T.
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