论文标题
通货膨胀期间相变的独特重力波信号
A unique gravitational wave signal from phase transition during inflation
论文作者
论文摘要
我们研究了通货膨胀时代一阶转换产生的重力波（GW）信号的性能。我们表明，GW的功率谱与其波数振荡。可以通过将来的地面和空间重力波检测器以及通过CMB中的B模式光谱直接观察到该信号。 GW的这种振荡特征对于通货膨胀期间发生的任何近似瞬时来源都是通用的，并且与通货膨胀后的相位转变不同。 GW频谱的细节包含有关相变的规模和宇宙后来演变的信息。
We study the properties of the gravitational wave (GW) signals produced by first order phase transitions during the inflation era. We show that the power spectrum of the GW oscillates with its wave number. This signal can be observed directly by future terrestrial and spatial gravitational wave detectors and through the B-mode spectrum in CMB. This oscillatory feature of GW is generic for any approximately instantaneous sources occurring during inflation and is distinct from the GW from phase transitions after the inflation. The details of the GW spectrum contain information about the scale of the phase transition and the later evolution of the universe.
