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hep-th2026
Three Advanced Lectures on Inflation
Martin S. Sloth
Lecture notes on inflation. The lectures are three double lectures, held for the first time at the Nordita Winter School 2024 - Particle Physics and Cosmology, covering an advanced…
hep-th2025
Soft gravitons as Goldstone modes of spontaneously broken asymptotic symmetries in de Sitter spacetimes
Martin S. Sloth
I demonstrate that soft graviton modes in de Sitter spacetimes are the Goldstone modes of the spontaneously broken asymptotic symmetry group of de Sitter space. I then show that an…