Seminars schedule

Astrophysics Colloquium
Astrophysics Journal Club
Astrophysics Seminar
Astrophysics Ph.D. Defence
Dennis Sciama Memorial Lecture
Astrophysics Cosmology Monday Digest
Astroparticle Physics Colloquium
Astroparticle Physics Seminar
Astroparticle Physics Coffee
Astroparticle Physics Ph.D. Defence

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Wed 11 Thu 12 Fri 13 Sat 14 Sun 15 Mon 16 Tue 17
Library Red Room
Blue reading room (SISSA library)

Wednesday 11 December 2019

139 h: 14:00 Spectator fields on a roller coaster: Gravitational Waves From Short-Lived Cosmic Strings
Dario Bettoni If inflation is followed by a period of kinetic domination, as is common in quintessential inflation scenarios, internal symmetries of non-minimally coupled spectator fields will be generically broken. This generates a complex dynamics for this field and leads to the formation of defects. One of the most relevant consequences is that this mechanism will tend to produce a, potentially detectable, gravitational waves background. Interestingly, the symmetry will be eventually restored implying the eventual decay of the defects.
(University of Salamanca)
Astroparticle Seminar