Cosmological constant problem: deflation during inflation
| Autor: | Felipe Canales, Benjamin Koch, Ángel Rincón, Cristobal Laporte |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Inflation (cosmology)
Physics High Energy Physics - Theory 010308 nuclear & particles physics Planck mass Asymptotic safety in quantum gravity FOS: Physical sciences Astronomy and Astrophysics Cosmological constant General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences Deflation General Relativity and Quantum Cosmology Theoretical physics High Energy Physics - Theory (hep-th) 0103 physical sciences Energy condition Inflationary epoch Cosmological constant problem |
| DOI: | 10.48550/arxiv.1812.10526 |
| Popis: | We argue 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. Comment: 9 pages, 3 figures, affiliation added |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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