标题： 高曲率修正和张量模式 显示英文标题

标题： Higher-Curvature Corrections and Tensor Modes

摘要： 高曲率修正可能在原初张量扰动的谱中留下特征，如果暴胀能标足够高的话。 在本文中，我们进一步研究了在最小破坏共形对称性的模型中，暴胀场与高曲率张量的耦合效应。 我们表明，来自高曲率张量的张量一致性关系的可观测违背也意味着张量谱指数的相对较大的运行，甚至比标准慢滚情况大一个数量级。 这可能在张量两点函数中留下特征，我们可以测试这些特征以识别高曲率效应，尤其是在它们被转化为未来引力波实验可见的蓝谱的情况下。 利用当前的宇宙微波背景和引力波数据，我们还推导了暴胀参数的约束，得出大高曲率修正似乎不被支持。 显示英文摘要

摘要： Higher-curvature corrections to the effective gravitational action may leave signatures in the spectrum of primordial tensor perturbations if the inflationary energy scale is sufficiently high. In this paper we further investigate the effects of a coupling of the Inflaton field to higher-curvature tensors in models with a minimal breaking of conformal symmetry. We show that an observable violation of the tensor consistency relation from higher-curvature tensors implies also a relatively large running of the tensor tilt, enhanced even by some order of magnitude with respect to the standard slow roll case. This may leave signatures in the tensor two-point function that we could test to recognize higher-curvature effects, above all if they are translated into a blue tilted spectrum visible by future Gravitational Wave experiments. Exploiting current cosmic microwave background and gravitational wave data we also derive constraints on the inflationary parameters, inferring that large higher-curvature corrections seem to be disfavored.