In this talk, we present an amusing observation that primordial gravitational waves, if ever observed, can be used to bound the hidden field content of the universe. This is because a large number of hidden fields can resum to potentially observable logarithmic runnings for the graviton two-point function in the context of single field inflation, courtesy of a `large N' expansion. This allows one to translate ever more precise bounds on the tensor to scalar consistency relation into bounds on the hidden field content of the universe, with potential implications for phenomenological...
Nacházíte se
Semináře a workshopy oddělení 29
Minulé semináře a workshopy
Jan Novák | Scalar perturbations of Galileon cosmologies in the mechanical approach in the late Universe | 03.05.2018 14:00 |
Tomi Koivisto | Symmetric Teleparallelism | 12.04.2018 14:00 |
Luca Marzola | The 21-cm Line | 10.04.2018 14:00 |
Roberto Oliveri | Gravitational multipole moments from Noether charges | 12.02.2018 14:00 |
Luca Visinelli | Axions in cosmology and astrophysics | 01.02.2018 16:00 |
Dr. Eleonora Villa | Theoretical systematics in galaxy clustering in LCDM and beyond | 31.01.2018 14:00 |
Martin Roček | WZW models and generalized geometry | 11.12.2017 16:00 |
Ed Copeland | Screening mechanisms and testing for them in cosmology and the laboratory | 04.12.2017 14:00 |
Dr. Ignacy Sawicki | Dark Energy: Evidence and Future Prospects | 06.11.2015 14:00 |
Dr. M. Gary | Higher Spin Lifshitz Holography | 28.03.2014 15:00 |
Stránky
Oddělení teorie a fenomenologie částic (29)
Krátké zprávy
FZÚ v médiích
ČTK, 16.10.2018.
Čtyři vědci s mimořádnými výsledky, tři mladí...
TYDEN.CZ, 2.10.2018.
Francouz Gérard Mourou, jeden ze tří...
FEEDIT.CZ, 20.9.2018.
Už od roku 2005 se z podnětu Evropské...