论文标题
原始黑洞暗物质在Dilaton扩展的两场Starobinsky通货膨胀
Primordial black hole dark matter in dilaton-extended two-field Starobinsky inflation
论文作者
论文摘要
我们研究了原始黑洞的产生及其对Starobinsky的二次二次$ F（R）通货膨胀模型的Dilaton两场延伸中目前观察到的暗物质的贡献。该模型具有多场扩增机制，该机制可导致通货膨胀功率谱系中尖锐的峰值产生，该波长是负责产生原始黑洞的小波长。该机制与单场模型显着不同，需要在通货膨胀动力学的中间阶段进行随机处理。我们发现，该模型导致了有效的单场Starobinsky通胀的成功阶段，该阶段是通过宇宙微波背景辐射探测的波长，并通过形成原始黑洞的形成，解释了宇宙中观察到的冷暗物质含量。
We investigate the production of primordial black holes and their contribution to the presently observed dark matter in a dilaton two-field extension of Starobinsky's quadratic $f(R)$ model of inflation. The model features a multi-field amplification mechanism which leads to the generation of a sharp peak in the inflationary power spectrum at small wavelengths responsible for the production of primordial black holes. This mechanism is significantly different from single-field models and requires a stochastic treatment during an intermediate phase of the inflationary dynamics. We find that the model leads to a successful phase of effective single-field Starobinsky inflation for wavelengths probed by the cosmic microwave background radiation and explains the observed cold dark matter content in the Universe by the formation of primordial black holes.
