Infrared surprises in the de Sitter universe [PDF]
Ugo MoschellaWe 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.View original: http://arxiv.org/abs/1210.4815
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