论文标题
GW170817兼容的恒定滚动爱因斯坦 - 高斯通货膨胀和非高斯
GW170817-compatible Constant-roll Einstein-Gauss-Bonnet Inflation and Non-Gaussianities
论文作者
论文摘要
在本文中，我们通过在标量场上施加恒定滚动的演化来研究与GW170817事件兼容的爱因斯坦 - 加斯 - 邦网理论的通货膨胀现象学。我们开发了恒定的GW170817兼容的爱因斯坦 - 加斯 - 鲍尼斯形式主义，并计算出多种感兴趣模型的通货膨胀的缓慢滚动指数和通货膨胀指数。正如我们所证明的那样，我们研究的模型的现象学生存能力是针对广泛的自由参数实现的。另外，对于保证模型通货膨胀现象学生存能力的自由参数的相同值，我们还对模型的非高斯性进行预测，因为已知恒定滚动进化可以增强非高斯。当我们表明非高斯的速度和恒定情况相同的顺序时，实际上，在某些情况下，在恒定情况下，非高斯的数量较小。
In this paper we investigate the inflationary phenomenology of an Einstein-Gauss-Bonnet theory compatible with the GW170817 event, by imposing the constant-roll evolution on the scalar field. We develop the constant-roll GW170817-compatible Einstein-Gauss-Bonnet formalism, and we calculate the slow-roll indices and the observational indices of inflation, for several models of interest. As we demonstrate, the phenomenological viability of the models we study is achieved for a wide range of the free parameters. In addition, for the same values of the free parameters that guarantee the inflationary phenomenological viability of the models, we also make predictions for the non-Gaussianities of the models, since the constant-roll evolution is known to enhance non-Gaussianities. As we show the non-Gaussianities are of the same order for the slow-roll and constant-roll case, and in fact in some cases, the amount of the non-Gaussianities is smaller in the constant-roll case.
