2019年9月18日, 星期三

CAA Seminar (05.16/2019) Testing Gravity on Cosmological Scales

Description

DoA Seminar Room, Thursday 16 May, 4:00pm-5:00pm

Title: Testing Gravity on Cosmological Scales
 
Speaker: Wenjuan Fang (USTC)
 
Abstract: The accelerating expansion of the Universe imposes one of the most challenging questions for modern physics. Except for a missing dark energy component, modified gravity on large scales is another popular perspective to tackle the puzzle of cosmic acceleration, for our standard theory of gravity, i.e., general relativity, is only stringently tested on astrophysical systems. It is possible that the accelerating expansion is a signature for modified behavior of gravity on scales so large that we were unable to observe before. Probes of cosmic acceleration thus provide a chance to test theories of gravity. I will talk about some typical examples of such modified gravity models and their cosmological probes, including a new probing method we currently develop that uses the morphological properties of the Universe’s large-scale structure. 

Location information

上海交通大学闵行校区

Country
中国
County
上海市
City
闵行区 200240
Street
800号 东川路

上海交通大学闵行校区