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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 14 Octobre 2026 |
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Heure |
11:00 |
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Institut |
LPENS |
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Salle |
E239 (Theoretical physics library) |
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Nom de l'orateur |
Chalker |
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Prenom de l'orateur |
John |
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Addresse email de l'orateur |
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Institution de l'orateur |
University of Oxford |
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Titre |
Chaotic many-body quantum dynamics, spectral correlations, and energy diffusion |
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Résumé |
I will describe a study of chaotic many-body quantum dynamics in a minimal model
with spatial structure and local interactions. It has a time-independent
Hamiltonian, in contrast to quantum circuits and Brownian models, and is simple at
the single-site level, in contrast to Sachdev-Ye-Kitaev chains. It is analytically
tractable for large local Hilbert space dimension and weak intersite coupling. In
this limit we show that energy dynamics is described by a classical master
equation and is diffusive. We also show that the spectral form factor can be
expressed exactly in terms of the solution to this master equation. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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