论文标题
F（t）重力中的非平凡的Minkowski背景
Non-trivial Minkowski backgrounds in f(T) gravity
论文作者
论文摘要
在$ f（t）$重重中研究了Minkowski空间的增强和旋转的四色背景。我们在非平凡的背景周围以一阶进行Lorentzian扰动，并表明某些Lorentz模式可以表现出非平凡的动力学，并且可以及时传播。这一出色的特征提供了洛伦兹部门中其他模式的证据，在洛伦兹侵入的修改重力中没有先例，但是它们甚至可以对这些模型的理论可行性提出怀疑。
Boosted and rotated tetrad backgrounds for the Minkowski space are studied in $f(T)$ gravity. We perform Lorentzian perturbations at first order around non-trivial backgrounds and show that some Lorentz modes can exhibit non-trivial dynamics and can propagate in time. This remarkable feature gives evidence of additional mode(s) in the Lorentzian sector which have no precedent in Lorentz-violating modified gravities, however they can cast doubts onto even theoretical viability of these models.
