Investigating Cosmic Inflation and Dark Energy in blended models of Particle Theory and Modified Gravity

研究粒子理论和修正重力混合模型中的宇宙膨胀和暗能量

• 批准号: 2604863
• 金额: --
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2604863
• 关键词: Investigating; Cosmic; Inflation; Dark; Energy

We aim to study model-building cosmic inflation and dark energy, possibly in a single theoretical framework, employing realistic particle theories beyond the standard model and also modified gravity theories, such as F(R) gravity. We intend to produce concrete predictions regarding the inflationary observables (scalar spectral index, tensor to scalar ratio) as well as characteristics of dark energy beyond CDM, such as the equation of state parameter and its running, to be probed in the near future, e.g. by the EUCLID and Nancy Grace Roman satellites. Contrast with observations will provide insights on the theoretical background. Emphasis will be given on the resolutions of cosmological open questions, such as the Hubble and growth tensions, and on observational signatures of gravitational waves, such as amplified primordial gravitational waves from inflation (or kination) or from primordial black holes (which could be the dark matter), to be probed in the near future directly by LIGO/Virgo of LISA or indirectly by forthcoming CMB observations, e.g. BICEP, SPIDER, Simons.

我们旨在研究模型建设宇宙通胀和暗能量，可能是在单个理论框架中，采用超出标准模型的逼真的粒子理论以及修改的重力理论，例如F（R）重力。我们打算就通货膨胀可观察物（标量光谱指数，张量与标量比）以及CDM之外的暗能量（例如状态参数方程及其运行等方程）产生具体的预测，例如在不久的将来进行探测，例如。由Euclid和Nancy Grace Roman卫星。与观察的对比将提供有关理论背景的见解。将重点放在宇宙学上的问题的解决方案上，例如哈勃和生长紧张局势，以及引力波的观察性特征，例如在通货膨胀（或Kination）或原始黑洞（可能是黑质）（可能是黑质）中探测到的ligo/virgo ligo liggo congoge comber，ligogo congogue comblation tabipation toctiation of ligo coct of ligo liggo congoge complationave浪潮的观察性特征。观察，例如二头肌，蜘蛛，西蒙斯。