论文标题

原始引力波的极化初始状态

Polarized initial states of primordial gravitational waves

论文作者

Kanno, Sugumi, Soda, Jiro

论文摘要

当考虑改良重力中的通货膨胀宇宙或物质场在通货膨胀期间存活时,原始引力波的极化可能是相关的。这种极化已经在Bunch-Davies真空中进行了讨论。在本文中,我们考虑了由$ SU(2)$相干状态构建的两极化初始状态,而不是考虑引力波的动态产生。然后,我们评估了州原始引力波的功率谱。

Polarizations of primordial gravitational waves can be relevant when considering inflationary universe in modified gravity or when matter fields survive during inflation. Such polarizations have been discussed in the Bunch-Davies vacuum. Instead of taking into account dynamical generation of polarizations of gravitational waves, in this paper, we consider polarized initial states constructed from $SU(2)$ coherent states. We then evaluate the power spectrums of the primordial gravitational waves in the states.

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