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Statut |
Confirmé |
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Série |
LPENS-BQ |
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Domaines |
cond-mat.stat-mech |
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Date |
Mercredi 10 Juin 2026 |
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Heure |
11:00 |
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Institut |
LPENS |
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Salle |
Conf IV |
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Nom de l'orateur |
Parez |
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Prenom de l'orateur |
Gilles |
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Addresse email de l'orateur |
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Institution de l'orateur |
LAPTh, Université Savoie Mont Blanc |
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Titre |
The range of multipartite entanglement in many-body states |
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Résumé |
The characterization of entanglement and its structure in quantum many-body states
is a long-standing problem at the interface of condensed matter physics and
quantum information. A pivotal question is to understand to what extent two or
more regions can remain entangled at large distances. As it turns out, this is
more subtle than understanding the range of quantum correlations: strongly
correlated states such as resonating valence-bond states and critical ground
states can display long-range correlations but only short-range multipartite
entanglement. I will discuss how particle statistics and superselection rules also
play a role in this problem, and how to understand it within the broader “fate of
entanglement” framework, which goes beyond the study of entanglement decay with
distance and also applies to finite-temperature systems and nonequilibrium
dynamics. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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