论文标题
对称触发器的宇宙学大黄蜂重力
Cosmology in symmetric teleparallel bumblebee gravity
论文作者
论文摘要
对称远程重力(STG)是对重力场的替代描述,这是非对象的效果,而不是时空的曲率。对于对称远程拉格朗日的特定选择,STG动力学等同于一般相对论(GR),它称为对称触发平行性等于一般相对论(Stegr)。我们建议在Stegr框架中违反引力部门的动态违反本地洛伦兹。洛伦兹的违规行为受到众所周知的Bumblebee场的真空期望值(VEV)的触发,其VEV伴侣伴侣与非赞誉张量。研究了这种耦合对宇宙进化的影响。
Symmetric teleparallel gravity (STG) is an alternative description of the gravitational field as an effect of the nonmetricity rather than the curvature of the spacetime. For an specific choice of the symmetric teleparallel lagrangian, the STG dynamics is equivalent to the general relativity (GR), and it is called Symmetric teleparallel equivalent to general relativity (STEGR). We propose a local Lorentz violating dynamics in the gravitational sector in the STEGR framework. The Lorentz violation is trigged by the vacuum expectation value (vev) of the well-known bumblebee field, whose vev couples to the nonmetricity tensor. The effects of such couplings on the cosmological evolution is investigated.