Spinodal solution to swampland inflationary constraints
Spinodal solution to swampland inflationary constraints
复制标题
沼泽地通货膨胀约束的旋节线解
作者：
R. Holman;Benoît Richard
我们展示了包含非微扰的、{em动力学的}量子效应如何在暴胀粒子的演化中允许一个既符合宇宙学约束的暴涨阶段{em和}避免与所谓的沼泽条件相关的问题。特别是，对于像普朗克数据所偏爱的那些凹势，与长波模式的速子质量相关的旋节不稳定性会引发第二轮暴涨，这实质上将树状势与暴胀相分离。我们以自然通货膨胀为例来说明这些观点。
We show how the inclusion of non-perturbative, {em dynamical} quantum effects on the evolution of the inflaton can allow for an inflationary phase that is both consistent with cosmological constraints {em and} avoids the problems associated with the so-called swampland conditions. In particular, for concave potentials such as those preferred by the Planck data, spinodal instabilities associated with tachyonic masses for long wavelength modes induce a second round of inflation, which in essence decouples the tree-level potential from the inflationary phase. We illustrate these points using natural inflation as an example.