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...
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Seminars and workshops of department 29
Past seminars and workshops
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 |
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Department of Particle Theory and Phenomenology (29)
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Technologické centrum AV ČR, 11.10.2018.
Czech Liaison Office...
Radio Praha in English, 4.5.2018.
Experts from the Institute of...
Prague Daily Monitor, 6.3.2018.
Czech astronomer Martin Masek...
FLEET.ORG, 19.8.2017.
There is considerable excitement about...