Magnetic Dirichlet Laplacian in curved waveguides

<jats:p>For a two-dimensional curved waveguide, it is well known that the spectrum of the Dirichlet Laplacian is unstable with respect to waveguide deformations. This means that if the waveguide is a straight strip then the spectrum of the Dirichlet Laplacian is purely essential. From the other hand, the perturbation of the straight strip produces eigenvalues below the essential spectrum. In this paper, the Dirichlet-Laplace operator with a magnetic field is considered. We explicitly prove that the spectrum of the magnetic Laplacian is stable under small but non-local deformations of the waveguide.</jats:p>

Authors

Publication Details

Journal
Opuscula Mathematica
Published
2025-01-01
DOI
https://doi.org/10.7494/opmath.2025.45.3.293
Citations
1
Primary Topic
Spectral Theory in Mathematical Physics
Type
article
Field-Weighted Citation Impact
3.69
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article

Magnetic Dirichlet Laplacian in curved waveguides

Swanhild Bernstein, Diana Barseghyan, Martha Lina Zimmermann, Baruch Schneider
1 citations
Opuscula Mathematica
Spectral Theory in Mathematical Physics
3.69
article

Magnetic Dirichlet Laplacian in curved waveguides

Swanhild Bernstein, Diana Barseghyan, Martha Lina Zimmermann, Baruch Schneider
article en
1 citations

Abstract

<jats:p>For a two-dimensional curved waveguide, it is well known that the spectrum of the Dirichlet Laplacian is unstable with respect to waveguide deformations. This means that if the waveguide is a straight strip then the spectrum of the Dirichlet Laplacian is purely essential. From the other hand, the perturbation of the straight strip produces eigenvalues below the essential spectrum. In this paper, the Dirichlet-Laplace operator with a magnetic field is considered. We explicitly prove that the spectrum of the magnetic Laplacian is stable under small but non-local deformations of the waveguide.</jats:p>

Opuscula Mathematica
Openalex Percentile: Top 10%
Spectral Theory in Mathematical Physics
3.69
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