Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série PT-IHES
Domaines hep-th
Date Jeudi 6 Fevrier 2025
Heure 14:00
Institut IHES
Salle Amphithéâtre Léon Motchane
Nom de l'orateur Cao
Prenom de l'orateur Xiangyu
Addresse email de l'orateur
Institution de l'orateur LPENS
Titre Inflationary Inference Problem
Résumé In a dynamical system that incorporates an exponentially growing number of degrees of freedom, can information sent at early time be retrieved at late time? This “inflationary inference problem” arises in several contexts: statistical inference, error correction, measurement-altered quantum criticality, quantum Darwinism, and cosmology. In this talk, we will introduce the problem, and propose a general criterion for inference, extending the Kesten-Stigum threshold. Implications in some of the aforementioned contexts will be discussed. In particular, we will revisit the question of “classicalisation” during inflation.
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