# Quantum Gravity and Predictions for our Universe

- Institution: CERN
- Department: CERN Colloquium
- Speaker: Cumrun Vafa
- Year: 2024
- Language: English
- Subjects: Physics
- Source: [CERN](https://videos.cern.ch/record/3011447)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

In this talk I provide an executive summary of some of the recent progress that has been made in understanding some key features of quantum gravitational theories. This is rooted in lessons learned from the landscape of consistent solutions to string theory and captured by the principles of the Swampland program. A key feature of this is the lack of decoupling between short and long distance descriptions of the theory leading to a radical revision of the notion of consistency of effective field theories. This opens up a new window into unresolved fine tuning problems for particle physics and cosmology. I will further explain how these ideas lead to concrete experimentally verifiable predictions for our universe.

Cumrun Vafa Cumrun Vafa is the Hollis Professor of Mathematicks and Natural Philosophy in the Physics Department at Harvard University, where he does research and teaches theoretical physics since 1985. Born in Iran in 1960, he moved to the US for higher education where he received his B.S. in math and physics from MIT before moving to Princeton University, where he received his Ph.D. in theoretical physics.

Coffee and tea served at 16:00pm .

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## Lectures

1. [Quantum Gravity and Predictions for our Universe](https://invisiblenetwork.ai/learn/cern/3011447/fa61335b3f87), 1 h 16 min (CERN's player)