24–27 Sept 2019
DESY Hamburg
Europe/Berlin timezone

Time-dependence of primordial power spectrum

26 Sept 2019, 14:00
15m
Seminar room 4a / 4b (DESY Hamburg)

Seminar room 4a / 4b

DESY Hamburg

Cosmology & Astroparticle Physics Parallel Session: Cosmology & Astroparticle Physics

Speaker

Dr Jinsu Kim (Georg-August University Goettingen)

Description

Inflationary models based on particle physics naturally involve multiple fields in addition to the inflaton field. Consequently these multiple fields may contribute to inflaton correlation functions via loop corrections. We study the quantum corrections to the inflaton two-point correlation functions due to massive scalar and fermion fields, employing the Schwinger-Keldysh formalism. We shall first describe the model and the generic framework. We then discuss time-dependent features of the primordial power spectrum.

Primary author

Dr Jinsu Kim (Georg-August University Goettingen)

Co-authors

Mr Francesco Costa (Georg-August University Goettingen) Prof. Laura Covi (Georg-August University Goettingen)

Presentation materials