from September 29, 2015 to October 2, 2015
DESY Hamburg
Europe/Berlin timezone
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DESY Hamburg - Seminar room 2

Renormalization freedom in de Sitter spacetime


  • Mr. Simone DRESTI

Primary authors

Abstract content

By considering a Quantum Field Theory with time-dependent backgrounds the time-translational symmetry of the Lagrangian may be broken. In my talk I would like to discuss renormalization in curved spacetime using the CTP formalism. In particular, I will show the results for simple diagrams, where explicit calculations are still possible. Connections with the renormalization as an extension of distributions will be pointed out.