17-24 July 2013
KTH and Stockholm University Campus
Europe/Stockholm timezone

Gravitational waves from first order phase transitions

19 Jul 2013, 11:00
45m
F3 (KTH Campus)

F3

KTH Campus

Talk presentation Cosmology and Gravity Cosmology and Gravity

Speaker

Chiara Caprini (CEA-Saclay)

Description

A first order phase transition in the early universe acts as a source of gravitational waves. The gravitational waves are produced by the collision of the broken phase bubbles and by the magnetohydrodynamic turbulence in the primordial plasma stirred by the bubble collision. It will be shown how the shape and amplitude of the gravitational wave spectrum can be predicted by general arguments based on the source properties, such as its time evolution and space structure. Detection prospects will be discussed especially for the electroweak phase transition, in connection with the eLISA mission.

Primary author

Chiara Caprini (CEA-Saclay)

Presentation Materials