Optical systems for future cosimic wave background experiments

人们普遍认为，在大爆炸之后不久，宇宙经历了一段非常迅速的膨胀时期，称为暴胀。卡迪夫大学在发展新的国际实验方面发挥了主导作用，利用对宇宙微波背景（CMB）的精确偏振观测来观察大爆炸的残余辐射，寻找所谓的“b模式”，被广泛认为是暴胀的“确凿证据”。两个主要项目是地面的西蒙斯天文台和未来的卫星任务，LiteBIRD。该学生将成为从事这两个项目的国际团队的一员。博士项目将涉及开发新的折射光学系统，以满足这些实验的高要求，以及其他未来的仪器概念。

It is widely believed that very shortly after the Big Bang, the universe underwent a period of very rapid expansion, called inflation. Cardiff University has leading roles in the development of new international experiments to observe the residual radiation from the Big Bang, using precision polarimetric observations of the cosmic microwave background (CMB), to search for so-called "B-modes", widely regarded as a "smoking gun" of inflation.Two major projects are the ground-based Simons Observatory, and the future satellite mission, LiteBIRD. The student will become a member of the international teams working on both projects. The PhD project will involve the development of new refractive optical systems that will meet the highly demanding requirements of these experiments, and other future instrument concepts.