论文标题
爱因斯坦 - 卡丹重力中的希格斯 - 迪拉顿通货膨胀
Higgs-Dilaton Inflation in Einstein-Cartan gravity
论文作者
论文摘要
我们在爱因斯坦 - 卡丹重力的背景下研究了希格斯 - 迪拉顿模型的现象学，重点是Holst和Nieh-Yan术语对通货膨胀可观察物的单独影响。使用分析和数值技术，我们展示了这些场景的预测，以在理论的度量公式中表现出与田间空间歧管的曲率本质上相关的吸引子样行为。除此之外，对Nieh-YAN病例的分析还揭示了在充气动力学术语中由立方极诱导的附加吸引子溶液，该溶液在大的Dilaton耦合处变得很重要。与公制和帕拉蒂尼对应物相比，这构成了爱因斯坦 - 卡丹配方的独特特征。
We study the phenomenology of the Higgs-Dilaton model in the context of Einstein-Cartan gravity, focusing on the separate impact of the Holst and Nieh-Yan terms on the inflationary observables. Using analytical and numerical techniques, we show the predictions of these scenarios to display an attractor-like behaviour intrinsically related to the curvature of the field-space manifold in the metric formulation of the theory. Beyond that, the analysis of the Nieh-Yan case reveals the existence of an additional attractor solution induced by a cubic pole in the inflaton kinetic term that becomes relevant at large dilaton couplings. This constitutes a unique feature of the Einstein-Cartan formulation as compared to the metric and Palatini counterparts.
