标题： 圈量子宇宙学模型中的引力波能谱 显示英文标题

标题： The energy spectrum of gravitational waves in a loop quantum cosmological model

摘要： 我们利用Bogoliubov系数的方法，探讨了环量子宇宙学（逆体积修正）对引力波谱的影响。这些修正在理论的背景水平上以及扰动理论框架的一阶近似中都被考虑进去。我们表明，这些修正导致在标准慢滚阶段之前，环超膨胀阶段产生大量的引力子，这些修正通过引力波能量谱中的新特征留下印记，包括频谱低频端出现一个新的峰值，这正是今天所测量到的。 显示英文摘要

摘要： We explore the consequences of loop quantum cosmology (inverse-volume corrections) in the spectrum of the gravitational waves using the method of the Bogoliubov coefficients. These corrections are taken into account at the background level of the theory as well as at the first order in the perturbations theory framework. We show that these corrections lead to an intense graviton production during the loop super-inflationary phase prior to the standard slow-roll era, which leave their imprints through new features on the energy spectrum of the gravitational waves as would be measured today, including a new maximum on the low frequency end of the spectrum.