报告题目:Bounce Universe from String theory and Beyond SM particle physics
报告人：张若筠教授
报告时间：下午2：00—3:00
报告地点：理学楼二楼教师活动中心
报告题目：Bounce Universe from String theory and Beyond SM particle physics
时间地点：12月13号 下午2：00—3:00理学楼二楼教师活动中心
报告人：张若筠教授，南京大学物理系，本科毕业于加州大学伯克利分校，在普林斯顿大学获得博士学位，后在加州理工大学做博士后，合作导师为John Schwarz 教授。2005年，入职浙江大学，被聘为副教授。2006年进入南京大学物理系，被聘为正教授。
报告简介：I will discuss how to construct a bounce universe from String theory as an extension to the standard cosmology beyond the Big Bang. This universe undergoes a period of contraction before a period of (not necessarily exponential) expansion. We are able to produce the right spectrum of primordial density perturbations, without violation of any energy conditions. We can follow the matter evolution throughout the bounce process using AdS/CFT correspondence and prove that cosmic singularity does not occur in the model.
The bounce universe can be a good stage for realising out-of-thermal-equilibrium processes and hence a good playground for studying CP violation and matter genesis in the early universe.
报告简介：I will discuss how to construct a bounce universe from String theory as an extension to the standard cosmology beyond the Big Bang. This universe undergoes a period of contraction before a period of (not necessarily exponential) expansion. We are able to produce the right spectrum of primordial density perturbations, without violation of any energy conditions. We can follow the matter evolution throughout the bounce process using AdS/CFT correspondence and prove that cosmic singularity does not occur in the model.
The bounce universe can be a good stage for realising out-of-thermal-equilibrium processes and hence a good playground for studying CP violation and matter genesis in the early universe.