28 November 2024
Europe/Berlin timezone

Loops in de Sitter space

28 Nov 2024, 09:55
45m

Speaker

Ivo Sachs

Description

In spite of being maximally symmetric, quantum field theory in de Sitter space requires to reconsider a number of concepts familiar in flat space, such as regularisation, analyticity etc. I will describe some of them by considering cosmological correlation functions at 1-and 2-loop level.

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