标题： 引力的量子修正及其对宇宙学和天体物理学的影响 显示英文标题

标题： Quantum corrections to gravity and their implications for cosmology and astrophysics

摘要： 量子修正在理论的高阶导数部分对引力作用量的贡献相对容易计算。 然而，应用到暴胀后的宇宙学和天体物理学中需要对爱因斯坦-希尔伯特作用量和宇宙学常数进行修正，而目前我们还无法以一致且安全的方式推导出这些修正。 同时，如果我们假设这些量子项是协变的，并且它们具有相关量级，那么它们的函数形式可以定义为仅有一个自由参数，该参数可以在现象学基础上定义。 结果表明，从原则上讲，量子修正可能在天体物理学和宇宙学中导致非常强且有趣的效应。 显示英文摘要

摘要： The quantum contributions to the gravitational action are relatively easy to calculate in the higher derivative sector of the theory. However, the applications to the post-inflationary cosmology and astrophysics require the corrections to the Einstein-Hilbert action and to the cosmological constant, and those we can not derive yet in a consistent and safe way. At the same time, if we assume that these quantum terms are covariant and that they have relevant magnitude, their functional form can be defined up to a single free parameter, which can be defined on the phenomenological basis. It turns out that the quantum correction may lead, in principle, to surprisingly strong and interesting effects in astrophysics and cosmology.