论文标题
宇宙的统一几何描述：从通货膨胀到延迟加速，而没有充气或宇宙常数
A unified geometric description of the Universe: from inflation to late-time acceleration without an inflaton nor a cosmological constant
论文作者
论文摘要
我们提出了一种宇宙学模型，该模型是由引力理论产生的，具有无限的高阶曲率不变性塔，可以重现宇宙的整个演变：从通货膨胀到延迟加速，而无需调用源源不断或宇宙学常数。该理论类似于爱因斯坦。 Friedmann-Lema-Robertson-Walker指标的场方程是二阶的，可以再现与低红移时宇宙学常数所提供的加速度相一致的后期演变。我们的结果迫使我们重新诠释了暗能量的本质，成为一种仅从时空几何形状继承的机制。
We present a cosmological model arising from a gravitational theory with an infinite tower of higher-order curvature invariants that can reproduce the entire evolution of the Universe: from inflation to late-time acceleration, without invoking an inflaton nor a cosmological constant. The theory is Einsteinian-like. The field equations for a Friedmann-Lemaître-Robertson-Walker metric are of second-order and can reproduce a late-time evolution that is consistent with the acceleration provided by the cosmological constant at low redshift. Our results force us to reinterpret the nature of dark energy, becoming a mechanism that is inherited solely from the geometry of spacetime.
