报告人：

郜青 博士

报告人单位：

西南大学

报告时间：

2018年2月5日下午3:00

报告地点：

东七楼，427室（四楼）

报告摘要：

For the   constant-roll tachyon inflation, we derive the analytical expressions

for the scalar and tensor power spectra, the scalar and tensor spectral tilts and the tensor to scalar ratio up to the first order by using the method of Bessel function approximation. The derived ns − r results for the constant-roll inflation are also compared with the observations, we find that only one constant-roll inflation is consistent with the observations and observations constrain the constant-roll inflation to be slowroll inflation. The tachyon potential is also reconstructed for the constant-roll inflation which is consistent with the observations.

报告人简介：

2015年12月毕业于华中科技大学并获得博士学位，现在西南大学物理科学与技术学院工作