论文标题
桥接间隙：光谱畸变符合重力波
Bridging the Gap: Spectral Distortions meet Gravitational Waves
论文作者
论文摘要
这次演讲的目的是在Precision Cosmology中介绍两个即将到来的令人兴奋的发现途径：光谱扭曲（SDS）和引力波（GWS）。前信号在重组前有时为原始血浆的状态提供了一个清晰的窗口，因此阐明了小规模的原始扰动，暗物质衰减和黑洞形成，以提及一些情况。后一个信号已经为黑洞和中子星融合的景观提供了新的见解，它将揭示早期宇宙的复杂动力学，包括原始黑洞，通货膨胀潜力，甚至重新加热动态。这两个未来的观察结果之间有一个优雅的链接，因为原始GW背景将提供SDS，这是一种耦合，为超过六十年的GW频率提供了独特的见解。更重要的是，SD可见性窗口弥合了天体物理高和宇宙学低频测量之间的差距。这意味着SD不仅会补充其他GW观测值，而且将是某些尺度上物理过程的唯一探测。
This talk has the goal of introducing two upcoming exciting avenues of discovery in precision Cosmology: spectral distortions (SDs) and gravitational waves (GWs). The former signals offer a clear window into the state of the primordial plasma at times prior to recombination, and thus sheds light on small-scale primordial perturbations, dark matter decay and black hole formation to just mention a few scenarios. The latter signals, which are already offering new insights into the landscape of black hole and neutron star mergers, will reveal intricate dynamics of the early universe including primordial black holes, inflationary potentials, and even reheating dynamics. An elegant link is drawn between these two future observations since primordial GW backgrounds will source SDs, a coupling which offers unique insight to over six decades of GW frequencies. More importantly the SD visibility window bridges the gap between astrophysical high- and cosmological low-frequency measurements. This means SDs will not only complement other GW observations, but will be the sole probe of physical processes at certain scales.
