论文标题
在物质辐射平等之前,从微观尺度上的快速结构形成引力波
Gravitational waves from rapid structure formation on microscopic scales before matter-radiation equality
论文作者
论文摘要
标量场的存在可以通过观察随机引力波进行探测。标量场的介导的吸引力,通常比重力强,长度比其康普顿波长短,当地平线大小很小时,在早期宇宙中可能不可忽略。这些吸引力的力表现出与重力不稳定性相似的不稳定性,只有更强。因此,它们可以导致某些物种的结构增长。我们确定了此类过程的引力波签名,并表明可以通过未来的重力波实验检测到它。
The existence of scalar fields can be probed by observations of stochastic gravitational waves. Scalar fields mediate attractive forces, usually stronger than gravity, on the length scales shorter than their Compton wavelengths, which can be non-negligible in the early Universe, when the horizon size is small. These attractive forces exhibit an instability similar to the gravitational instability, only stronger. They can, therefore, lead to the growth of structures in some species. We identify a gravitational waves signature of such processes and show that it can be detected by future gravitational waves experiments.