The trans-Planckian Censorship and the Initial Condition Problem
مهدی ترابیان (دانشکده فیزیک دانشگاه صنعتی شریف)
Abstract: The swampland picture that has been emerging from string theory offers a list of criteria that every field theory consistent with quantum gravity must admit. These conditions have interesting implications for the early Universe cosmology and strongly constrain cosmological models. In this talk, we discuss the trans-Planckian censorship conjecture and its consequences for inflationary cosmology. In particular, it implies that the vanilla models of inflation are rather low scale and suffer from severe fine-tuning of initial conditions. We discuss how multiple inflationary models could alleviate the initial condition problem and accommodate a possible detection of gravitational waves in future.
یکشنبه 26 آبان 1398، ساعت 15:00
دانشکده فیزیک، طبقه اول کلاس فیزیک 3