论文标题
单场通货膨胀在一般宇宙学场景中的含义对纵向猜想的黑暗能量性质的含义
Implications of single field inflation in general cosmological scenarios on the nature of dark energy given the swampland conjectures
论文作者
论文摘要
Swampland的猜想引起了人们对宇宙学界的浓厚兴趣。已显示它们具有广泛的含义，例如对通货膨胀模型，原始黑洞等的约束，仅举几例。一个特别揭示的对暗能量的见解还表明，在考虑到精制的DS猜想之后，与-1相比，典型场景具有巨大的不同状态的暗能量方程。 Swampland猜想的另一个有趣的问题是，它们已被证明与基于GR的宇宙学中的单场通货膨胀模型不相容。但是，在我们以前的工作中，我们已经表明，单场通货膨胀模型与在大量修改的宇宙学场景中通常的弦弦理论形式中的Swampland猜想非常兼容。在这项工作的基础上，我们现在表明，在经过修改的宇宙学场景中，早期宇宙扩展是由单场通货膨胀驱动的，即使我们仅考虑了原始的DS猜想，也可以使状态的暗能量方程式与-1显着不同，更不用说精致的形式了。因此，我们表明，一个人不需要应用步骤函数方法来通货膨胀，以便在Swampland猜想的背景下在常数和非恒定的暗能量模型之间具有可观察到的区别。
Swampland Conjectures have attracted quite some interest in the Cosmological Community. They have been shown to have wide ranging implications , like Constraints on Inflationary Models, Primordial Black Holes etc. to name a few. A particularly revealing insight on dark energy also shows that one can have the dark energy equation of state for a quintessence scenario to be signficantly different than -1 after one takes into account the refined dS conjecture. Another interesting issue with the swampland conjectures is that they have been shown to be incompatible with single field inflationary models in GR based cosmology. In our previous work we have, however, showed that single field inflationary models are quite compatible with swampland conjectures in their usual string theoretic form in a large class of modified cosmological scenarios. Building on that work, we now show that in modified cosmological scenarios where the early universe expansion was driven by single field inflation , one can have the dark energy equation of state to be significantly different from -1 even if we just take into account the original dS conjecture, let alone the refined form of that. We thereby show that one does not need to apply a step function approach towards inflation in order to have an observable distinction between constant and non constant dark energy models in the context of the swampland conjectures.
