本文探讨了IIB大型体积orientifold设置中，包含poly-instanton修正的单场理论扩展至包括轴子模后的动态，导致的“轮盘”型通货膨胀模型。研究了多个 inflationary 轨迹及其对50或更多e-foldings的影响，同时深入分析了慢速滚动及超慢速滚动区间的物理观测值，并探究了原初非高斯性的生成。结果显示，在慢速滚动阶段非线性参数虽小，但在超慢速滚动阶段显著增强。
摘要：
In the context of Type IIB LARGE volume orientifold setup equipped with poly-instanton corrections, the standard single-field poly-instanton inflation driven by a 'Wilson' divisor volume modulus is generalized by the inclusion of respective axion modulus. This two-field dynamics results in a "Roulette" type inflation with the presence of several inflationary trajectories which could produce 50 (or more) e-foldings. The evolution of various trajectories along with physical observables are studied. The possibility of generating primordial non-Gaussianities in the slow-roll as well as in the beyond slow-roll region is investigated. We find that although the non-linearity parameters are quite small during the slow-roll regime, the same are significantly enhanced in the beyond slow-roll regime investigated up to the end of inflation.
展开
扫一扫
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
