Partial Differential Equations
Analytic singularities for long range Schrödinger equations
Comptes Rendus. Mathématique, Volume 346 (2008) no. 15-16, pp. 849-852

We consider the Schrödinger equation associated to long range perturbations of the flat Euclidean metric (in particular, potentials growing subquadratically at infinity are allowed). We construct a modified quantum free evolution G0(s) acting on Sjöstrand's spaces, and we characterize the analytic wave front set of the solution e−itHu0 of the Schrödinger equation, in terms of the semiclassical exponential decay of G0(−th−1)Tu0, where T stands for the Bargmann-transform. The result is valid for t<0 near the forward non-trapping points, and for t>0 near the backward non-trapping points.

On considère l'équation de Schrödinger associée à des perturbations à longue portée de la métrique euclidienne plate (en particulier, on autorise des potentiels qui croissent de manière sub-quadratique à l'infini). On construit une évolution quantique modifiée G0(s) agissant sur des espaces de Sjöstrand, et on caractérise le front d'onde analytique de la solution e−itHu0 de l'équation de Schrödinger en termes de décroissance exponentielle semiclassique de G0(−th−1)Tu0, où T désigne la tranformation de Bargmann. Le résultat est valable pour t<0 près des points non captifs dans l'avenir, et pour t>0 près des points non captifs dans le passé.

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Accepted:
Published online:
DOI: 10.1016/j.crma.2008.07.010

André Martinez  1 ; Shu Nakamura  2 ; Vania Sordoni  1

1 Università di Bologna, Dipartimento di Matematica, Piazza di Porta San Donato 5, 40127 Bologna, Italy
2 Graduate School of Mathematical Science, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, Japan 153-8914
André Martinez; Shu Nakamura; Vania Sordoni. Analytic singularities for long range Schrödinger equations. Comptes Rendus. Mathématique, Volume 346 (2008) no. 15-16, pp. 849-852. doi: 10.1016/j.crma.2008.07.010
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