| HAL : hal-00527643, version 4 |
| DOI : 10.1007/s00033-011-0163-y |
| Fiche détaillée | Récupérer au format |
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| Zeitschrift für angewandte Mathematik und Physik (ZAMP) 63, 2 (2012) 203-231 |
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| Versions disponibles : | v1 (20-10-2010) | v2 (20-10-2010) | v3 (22-11-2010) | v4 (18-06-2011) |
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| Discrete spectrum of a model Schrödinger operator on the half-plane with Neumann conditions |
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| Virginie Bonnaillie-Noël 1Monique Dauge 1 |
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| (2012) |
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| We study the eigenpairs of a model Schrödinger operator with a quadratic potential and Neumann boundary conditions on a half-plane. The potential is degenerate in the sense that it reaches its minimum all along a line which makes the angle \theta with the boundary of the half-plane. We show that the first eigenfunctions satisfy localization properties related to the distance to the minimum line of the potential. We investigate the densification of the eigenvalues below the essential spectrum in the limit \theta \to 0 and we prove full asymptotic expansion for these eigenvalues and their associated eigenvectors. We conclude the paper by numerical experiments obtained by a finite element method. The numerical results confirm and enlighten the theoretical approach. |
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| 1 : | Institut de Recherche Mathématique de Rennes (IRMAR) |
| CNRS : UMR6625 – Université de Rennes 1 – École normale supérieure de Cachan - ENS Cachan – Institut National des Sciences Appliquées (INSA) : - RENNES – Université de Rennes II - Haute Bretagne | |
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| Domaine | : | Mathématiques/Equations aux dérivées partielles Physique/Physique mathématique Mathématiques/Physique mathématique |
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| Agmon estimates – Born-Oppenheimer approximation – Schrödinger operator – Semi classical limit |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00527643, version 4 | |
| http://hal.archives-ouvertes.fr/hal-00527643 | |
| oai:hal.archives-ouvertes.fr:hal-00527643 | |
| Contributeur : Monique Dauge | |
| Soumis le : Samedi 18 Juin 2011, 18:48:05 | |
| Dernière modification le : Mardi 10 Avril 2012, 13:02:16 | |