Understanding Cosmic Acceleration: A Question of Life, the Universe and Everything?

Webinar:- Understanding Cosmic Acceleration: A Question of Life, the Universe and Everything?

The cosmological constant provides a simple explanation for the observed late-time accelerated expansion of our Universe. Our lack of understanding of it, however, motivates the exploration of alternative explanations such as a modification of General Relativity at cosmological scales. The speaker will first discuss how gravitational wave observations have severely challenged that concept. He will then present a new self-tuning mechanism that provides a simple toy model to simultaneously solve both the old and new aspects of the cosmological constant problem. A possible signature of this mechanism is the variation of fundamental constants across different spacetime regions. The speaker will briefly present new tools that can be used with forthcoming nonlinear cosmological data in the search for New Physics. Finally, he will explore the Emergence of Life across a potential multiverse as an approach to a deeper understanding of the fundamental parameters and laws of our own observable Universe.

時間:2021.09.07(二) 21:00~22:20
講者:Lucas Lombriser(University of Geneva)

※May participant write to [email protected] to request for meeting link.


“Copernicus Webinar and Colloquium Series”: To promote scientific discussions during this pandemic, they 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.


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