Positivity in the Sky

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• Professor Claudia de Rham - Imperial College, London
• Wednesday 12 February 2025, 16:00-17:00
• MR3.

If you have a question about this talk, please contact Amanda Stagg.

I will discuss the subtle interplay between the behaviour of gravity as we observe it in our “everyday experiments”, and its embedding within an ultimate high energy completion. In particular, I will emphasize how the notion of causality is manifested with gravity, a consideration which is particularly relevant for putting constraints on the physical theories we use to describe observations and make future predictions. By considering low-energy processes including effects from Standard Model particles, I will also argue how we can get an insight on some properties of physics at high energy, well beyond what is accessible with current and future observations and experiments.

This talk is part of the Theoretical Physics Colloquium series.

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