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  Location: Home >  Research Activities >  Seminar
Quantum Gravity Constraints on Dark Matter and Inflation
2015-04-23     Text Size:  A

Institute of Theoretical Physics

Chinese Academy of Sciences

State Key Laboratory of Theoretical Physics

Seminar

 

Title

题目

Quantum Gravity Constraints on Dark Matter and Inflation

Speaker

报告人

Prof. Gary Shiu

Affiliation

所在单位

University of Wisconsin at Madison

Date

日期

2015.4.23, 14:00

Venue

地点

理论所新楼6620报告厅

Abstract

摘要

Quantum gravity is often believed to have very little to do with observable physics. In this talk, we discuss how general properties of quantum gravity can impose non-trivial constraints on dark matter physics and on inflationary scenarios. First, we discuss how the existence of milli-charged dark matter particles squares with quantum gravity and string theory. Then, we propose a mechanism motivated by string theory, known as Stuckelberg portal, by which the dark matter particles can interact with the visible matter. Finally, we discuss how quantum gravity can impose a stringent upper bound on the axion field ranges (aka decay constants) and hence the gravitational wave signal generated by axion inflation.

Contact Personn

所内合作者

黄庆国

   

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