论文标题
大型通货膨胀和宇宙撞机
Large-Field Inflation and the Cosmological Collider
论文作者
论文摘要
大型电气通货膨胀是一类主要的通货膨胀模型，具有通气场的接近或超级普兰克游览。我们指出，大型旅行通常通过反弹耦合引入了对观众场的显着尺度依赖性，这反过来又引起了由观众场介导的原始双光谱中的振荡形状依赖性的特征扭曲。因此，这种所谓的宇宙撞机信号可以是大型田间偏移的有用指标。我们展示了一个明确的示例，该示例带有来自Swampland距离猜想的“塔状态”的信号。
Large-field inflation is a major class of inflation models featuring a near- or super-Planckian excursion of the inflaton field. We point out that the large excursion generically introduces significant scale dependence to spectator fields through inflaton couplings, which in turn induces characteristic distortions to the oscillatory shape dependence in the primordial bispectrum mediated by a spectator field. This so-called cosmological collider signal can thus be a useful indicator of large field excursions. We show an explicit example with signals from the "tower states" motivated by the swampland distance conjecture.
