Colloquium Ehrenfestii - Anne Davis (University of Cambridge): 'The accelerating Universe'



19:30 hrs


Sitterzaal, Oort building, Leiden


Observations suggest the Universe underwent two periods of accelerated expansion, one at very early times and one today. I will discuss the observations and focus on the recent period of accelerated expansion, discussing a potential explanation in terms of modified gravity and in particular the chameleon mechanism. I will show how a screening mechanism results in gravity being modified in sparse environments, like the cosmos,  but not in the solar system. The implications will be discussed for cosmology, astrophysics and in the laboratory. Experiments searching for such modified gravity theories discussed. 


29 - 30 October 2019

Inside Quantum Technology Europelink

11 - 15 November 2019

Life Sciences with Industry 2019link