Infrared surprises in the de Sitter universe

Abstract

We describe a few unexpected features of de Sitter Quantum Field Theory that have no Minkowskian counterparts. These phenomena show that even when the cosmological constant is tiny a Minkowskian way of fast thinking about de Sitter can lead to mistakes and that de Sitter QFT is essentially different from standard relativistic (Minkowskian) QFT.

References in corpus (3)

• De Sitter Space and Eternity
• Lifetime of a massive particle in a de Sitter universe
• A note on canonical quantization of fields on a manifold