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Description
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.
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https://cern.zoom.us/j/67346292748?pwd=ZnRkQWh0ZXVFQTc5K256QW5NcEcrdz09
TH colloquia
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67346292748
Host
Elena Gianolio
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Zoom Recording Operations 2, Irene Valenzuela Agui, Benoit Loyer, Clement Montcharmont, Pier Francesco Monni, AVC support account, Urs Wiedemann, Thomas Nik Bazl Fard, Pascal Pignereau
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