Self-Organised Localisation
Matthew McCullough
CERN
Mardi 22/06/2021, 16:00-18:00
https://ijclab.zoom.us/j/94900481972
We describe a new phenomenon in quantum cosmology: self-organised localisation. When the fundamental parameters of a theory are functions of a scalar field subject to large fluctuations during inflation, quantum phase transitions can act as dynamical attractors. As a result, the theory parameters are probabilistically localised around the critical value and the Universe finds itself at the edge of a phase transition. We illustrate how self-organised localisation could account for the observed near-criticality of the Higgs self-coupling, the naturalness of the Higgs mass, or the smallness of the cosmological constant. The seminar is online only: https://ijclab.zoom.us/j/94900481972

 

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