论文标题
在重力镜头系统上具有极低频率的原始重力波的烙印
Imprint of primordial gravitational wave with extremely low frequency on gravitational lens system
论文作者
论文摘要
早期宇宙中通货膨胀的原始引力波有望起源。对这种引力波的检测对于验证通货膨胀理论并确定通货膨胀的能量尺度具有重要意义。宇宙微波背景极化的B模式显示是极低频率原始重力波的有希望的探针。为了找到极低频率的原始引力波引起的互补观察特征，我们通过研究具有极低频率的原始引力波对具有非对准的源源 - 驱动器 - 观察者 - 观察者 - 观察者配置的原始引力波的影响。结果表明，借助一系列选择的参数，引力镜头系统具有极低的频率原始引力波的扰动，可能会诱导时间延迟，这可能会偏离从理论模型中推导的时间延迟，这意味着重力透镜系统具有非对准的配置，可以用作潜在的长期型线降低的型号的频率，这可能是极端的较低的降值。
Primordial gravitational waves with extremely low frequency are expected to origin from inflation in the early Universe. The detection of such kind of gravitational waves is of great significance to verify the inflationary theory and determine the energy scale of inflation. B-mode of polarization of cosmic microwave background shows to be a promising probe of extremely low frequency primordial gravitational wave. In order to find a complementary observational feature induced by primordial gravitational wave with extremely low frequency, we propose an alternative way of detection by investigating the effect of primordial gravitational wave with extremely low frequency on a gravitational lens system with a non-aligned source-deflector-observer configuration. The results show that, with a series of chosen parameters, gravitational lens system with perturbation from extremely low frequency primordial gravitational wave could induce time delay which could deviate from the time delay deduced from theoretical model as much as about one hundred percent, meaning that gravitational lens system with a non-aligned configuration could serve as a potential long-base-line detector of extremely low frequency primordial gravitational wave.
