Cosmological constant problem: deflation during inflation

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Event details

Date 28.10.2019
Hour 14:0015:30
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.

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  • General public
  • Free

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