How Lagrangian states evolve into random waves
[Comment les états lagrangiens évoluent en ondes aléatoires]
Journal de l’École polytechnique — Mathématiques, Tome 9 (2022), pp. 177-212.

Dans cet article, nous considérons une variété riemannienne connexe, compacte, de courbure sectionnelle négative, et une famille d’états lagrangiens semi-classiques f h (x)=a(x)e iϕ(x)/h sur X. Pour une grande famille de phases ϕ, nous montrons que f h que l’on fait évoluer par l’équation de Schrödinger pendant un temps long ressemble à un champ aléatoire gaussien. Ceci peut être vu comme un analogue de la conjecture des ondes aléatoires de Berry pour les états lagrangiens.

In this paper, we consider a compact connected manifold (X,g) of negative curvature, and a family of semi-classical Lagrangian states f h (x)=a(x)e iϕ(x)/h on X. For a wide family of phases ϕ, we show that f h , when evolved by the semi-classical Schrödinger equation during a long time, resembles a random Gaussian field. This can be seen as an analogue of Berry’s random waves conjecture for Lagrangian states.

Reçu le :
Accepté le :
Publié le :
DOI : 10.5802/jep.181
Classification : 35P99, 81B50, 81Q20
Keywords: Quantum chaos, semi-classical analysis, Berry’s conjecture, random waves
Mot clés : Chaos quantique, analyse semi-classique, conjecture de Berry, ondes aléatoires
Maxime Ingremeau 1 ; Alejandro Rivera 2

1 Laboratoire J.A. Dieudonné, Université Côte d’Azur Parc Valrose, 06108 Nice Cedex 2, France
2 École Polytechnique Fédérale de Lausanne, Chair of Random Geometry CH-1015 Lausanne, Suisse
Licence : CC-BY 4.0
Droits d'auteur : Les auteurs conservent leurs droits
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Maxime Ingremeau; Alejandro Rivera. How Lagrangian states evolve into random waves. Journal de l’École polytechnique — Mathématiques, Tome 9 (2022), pp. 177-212. doi : 10.5802/jep.181. https://jep.centre-mersenne.org/articles/10.5802/jep.181/

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