论文标题
从宇宙学背景中的弦理论衍生出洛夫洛克重力
Derive Lovelock Gravity from String Theory in Cosmological Background
论文作者
论文摘要
事实证明，三十多年前，第一阶$α'$校正有效理论可以写为高斯 - 骨网术语，这是Lovelock Gravity的二次术语。在宇宙学背景中，具有适当的字段重新定义，我们将无限的$α'$校正有效作用重组为有限的项表达式，以实现任何特定维度。该有限项表达式与Lovelock重力完全匹配，从而通过弦有效作用系数固定Lovelock重力的耦合。因此，该结果为字符串理论提供了强有力的支持。
It was proved more than three decades ago, that the first order $α'$ correction of string effective theory could be written as the Gauss-Bonnet term, which is the quadratic term of Lovelock gravity. In cosmological background, with an appropriate field redefinition, we reorganize the infinite $α'$ corrections of string effective action into a finite term expression for any specific dimension. This finite term expression matches Lovelock gravity exactly and thus fix the couplings of Lovelock gravity by the coefficients of string effective action. This result thus provides a strong support to string theory.
