発表者:Dr Taotao Qiu(邱涛涛)

時間:13:30〜

タイトル:a Galileon bounce model

概要:Bounce cosmology will be an alternative of inflation that may avoid
singularity problem. However, the simplest bounce models in 4D Einstein
Gravity generally have ghost problem. In this talk I present nonsingular
and ghost-free bouncing solutions of the conformal Galileon model. I show
that such solutions necessarily begin with a radiation-dominated
contracting phase followed by Galilean Genesis in expanding phase. I also
present the scalar and tensor spectrum of cosmological perturbations in
this background.


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Last-modified: 2013-11-20 (水) 11:11:54 (1405d)