论文标题
关于宇宙学中强烈的耦合问题，“过去的重力很大”
On the strong coupling problem in cosmologies with "strong gravity in the past"
论文作者
论文摘要
我们检查了早期的潜在强耦合问题，该弹跳宇宙学模型具有“过去强烈的重力”（约旦框架），该模型与通货膨胀（Einstein框架）完全相关。从约旦框架中的天真尺寸分析中，一个可以得出结论，量子强耦合能量表可以低于经典能量量表。但是，从爱因斯坦的框架前瞻性，情况并非如此。我们通过在约旦框架中的计算来说明这一点，该计算显示了树级幅度中危险贡献的取消。
We examine the potential strong coupling problem at early times in a bouncing cosmological model with "strong gravity in the past" (Jordan frame), which is conformally related to inflation (Einstein frame). From naive dimensional analysis in the Jordan frame one would conclude that the quantum strong coupling energy scale can be lower than the classical energy scale. However, from the Einstein frame prospective this should not be the case. We illustrate this point by calculation in the Jordan frame which shows cancellations of the dangerous contributions in the tree level amplitude.
