July 9, 2020 to December 31, 2023
Europe/Zurich timezone
Dear Colleagues,
To promote scientific discussions during this pandemic, we are organizing an online seminar series, i.e. Copernicus Webinar Series, seeking the most outstanding speakers to introduce innovative ideas and important progress in the field of gravity and cosmology. This series is named after the famous Polish Astronomer, Nicolaus Copernicus, whose discovery eventually marked the dawn of modern science.
We would like to invite you to take part in the upcoming 106th Copernicus Webinars.
Time:                 4th October, Tuesday, 3pm CEST (9 pm Beijing, 10 pm JST, 9am EDT, 2pm UK)
Speaker:            Anne-Christine Davis (DAMTP, University of Cambridge)

Title: Modified Gravity and Observational Constraints


Abstract: There has been a lot of interest in theories that modified Einstein gravity but which reduce to general relativity in certain limits. Such modified gravity theories predict the existence of a fifth force. There are severe constraints on fifth forces from solar system observations. However there has been a recent resurgence of interest in modified gravity theories with the advent of sophisticated screening mechanism whereby the fifth force is suppressed in the solar system but not necessarily beyond. I will review some models of modified gravity and display the screening mechanism. I will then discuss how such models can be tested and constrained using laboratory experiments.

Zoom link:
Meeting ID: 421 480 1692
Passcode: cosmology

This series is co-organised by the cosmology groups in the following institutions (in alphabetical order): 

Harvard University, Hong Kong University of Science and Technology, Institut d'Astrophysique de Paris, Institute of Physics of the Czech Academy of Science, Jagiellonian University, Kyoto University, Leiden University, Ludwig Maximilians University, McGill University, Perimeter Institute, Polish Society on Relativity, The Pennsylvania State University, The University of Tokyo, Tsinghua University, University of Geneva, University of Groningen, University of Science and Technology of China, University of Waterloo.

Science Organising Committee members (in alphabetical order):

Niayesh Afshordi, Robert Brandenberger, Yifu Cai, Xingang Chen, Ema Dimastrogiovanni, Ruth Durrer, Ghazal Geshnizjani, Chunshan Lin, Jerome Martin, Jakub Mielczarek, Viatcheslav Mukhanov, Shinji Mukohyama, Subodh Patil, Misao Sasaki, Sarah Shandera, Wei Song, Alexander Vikman, Yi Wang, Zhong-Zhi Xianyu