论文标题
弦通胀中的次级GWS和PBHS：形成和可检测性
Secondary GWs and PBHs in string inflation: formation and detectability
论文作者
论文摘要
我们得出频谱并分析了与原始黑洞（PBH）产生相关的二次重力波（GWS）的可检测性前景，称为纤维膨胀模型。通货膨胀的电位具有近弯曲点，导致一段超慢滚动的时期负责增强标量扰动的能力，这可能导致PBH与当前的观察界限一致，对暗物质（DM）的贡献（DM）与CMB的标量频谱指数和张力张力谱系和张力张力相一致。曲率扰动来源的这种增强次级GWS可以通过LISA，ET或BBO检测到的次级GWS，具体取决于GW频率，但是无论PBH DM的量如何，因为次级GWS仍可检测到，即使PBH对DM的贡献受到了极度抑制。看到次级GW信号的可能性是由于CMB地平线出口和通货膨胀末端之间存在超慢滚动时期。
We derive the spectrum and analyse the detectability prospects of secondary gravity waves (GWs) associated to primordial black hole (PBH) production in a class of string inflationary models called Fibre Inflation. The inflationary potential features a near inflection point that induces a period of ultra slow-roll responsible for an enhancement of the scalar perturbations which can lead to PBHs with different masses and contributions to dark matter (DM) in agreement with current observational bounds, including CMB constraints on the scalar spectral index and the tensor-to-scalar ratio. This enhancement of the curvature perturbations sources secondary GWs which can be detected by either LISA, ET or BBO, depending on the GW frequency but regardless of the amount of PBH DM since secondary GWs remain detectable even if the PBH contribution to DM is exponentially suppressed. The possibility to see a secondary GW signal is instead due to the presence of an ultra slow-roll epoch between CMB horizon exit and the end of inflation.
