论文标题
与形式对称性的最简单重力模型中的通货膨胀溶液
Inflationary solutions in the simplest gravity model with conformal symmetry
论文作者
论文摘要
我们讨论了一种重力模型，并以形式的对称性形式出现在最简单的一般相对性与庞加莱代数术语的延伸中。对称性的非线性实现导致存在五个标量场。因此，在宇宙进化的最早阶段使用它们来推动通货膨胀似乎是可取的。结果表明，量表因子的演变并不意味着加速扩展，因此该模型中没有通货膨胀解决方案。为了推动通货膨胀，需要由庞贝拉代数扩展引起的更复杂的模型。
We discuss a model of gravity with conformal symmetry appearing in the simplest extension of General Relativity with the Poincaré algebra terms. The nonlinear realization of symmetry causes the existence of five scalar fields. Therefore it looks desirable to use them for driving the inflation at the earliest stages of the Universe evolution. It is shown that the evolution of the scale factor doesn't imply accelerated expansion so that there are no inflationary solutions in this model. To drive inflation a more complicated model induced by extension of the Poincare algebra is required.
