标题： 受ACT启发的凯勒基暴胀吸引子 显示英文标题

标题： ACT-Inspired Kaehler-Based Inflationary Attractors

摘要： 我们开发了一类新的宇宙学吸引子，这些吸引子与最近的ACT结果相容。它们基于两种类型的分数Kähler势K，对于一个规范单态暴胀场φ，在暴胀路径上会简化为形式N/(1-φ^qM)^p，其中qM=1, 2和0.1< p<10。将这些K与非线性σ模型中的混沌势φ^n（其中n=2, 4）结合，会导致与当前数据一致且在很大程度上与qM和n无关的暴胀观测值。通过赋予这些K一个平移对称性，我们还提供了我们的模型的超引力实现，引入了两个全纯超场和一个关于伴随暴胀场的线性单项超势。以普朗克以下的暴胀场值实现暴胀以及张量-标量比的较大值（随着N增加而增加）是本提案的另外两个吸引人的特点。 显示英文摘要

摘要： We develop a new class of cosmological attractors which are compatible with the recent ACT results. They are based on two types of fractional Kaehler potentials, K, for a gauge-singlet inflaton phi which reduce, along the inflationary path, to the form N/(1-phi^qM)^p with qM=1, 2 and 0.1< p<10. The combination of these K's with the chaotic potentials phi^n (where n=2, 4) within a non-linear sigma model leads to inflationary observables which are consistent with the current data and largely independent from qM and n. Endowing these K's with a shift symmetry we also offer a supergravity realization of our models introducing two chiral superfields and a monomial superpotential, linear with respect to the inflaton-accompanying field. The attainment of inflation with subplanckian inflaton values and the large values for the tensor-to-scalar ratio, which increases with N, are two additional attractive features of our proposal.