

01:32:52
publiée le 7 août 2025
Paradigms for the algorithms on different technologies - lecture 1
De Thomas Ayral
Apparaît dans la collection : 2024 - PC1 - WS - Curved spacetimes, field theory and beyond
We will explain the construction of the euclidean vacuum state for linearized gravity on de Sitter spacetime by a rigorous version of Wick rotation. We will discuss issues related to gauge invariance, positivity and invariance under de Sitter isometries.