Cosmological constant problem: deflation during inflation
Event details
Date | 28.10.2019 |
Hour | 14:00 › 15:30 |
Speaker | Benjamin Koch (PUC, Santiago de Chile) |
Location | |
Category | Conferences - Seminars |
It is argued that the discrepancy between the Planck mass scale and the observed value of the cosmological constant can be largely attenuated if those quantities are understood as a result of effective, and thus scale-dependent, couplings. We exemplify this mechanism for the early inflationary epoch of the universe by solving the corresponding effective gap equations, subject to an energy condition. Several non-trivial checks and extensions are discussed. A comparison of our results to the renormalization group flow, obtained within the asymptotic safety program reveals a stunning agreement.
Practical information
- General public
- Free