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arXiv · 1504.00252

Sharp asymptotic estimates for eigenvalues of Aharonov-Bohm operators with varying poles

Laura Abatangelo·Veronica Felli
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Abstract

We investigate the behavior of eigenvalues for a magnetic Aharonov-Bohm operator with half-integer circulation and Dirichlet boundary conditions in a planar domain. We provide sharp asymptotics for eigenvalues as the pole is moving in the interior of the domain, approaching a zero of an eigenfunction of the limiting problem along a nodal line. As a consequence, we verify theoretically some conjectures arising from numerical evidences in preexisting literature. The proof relies on an Almgren-type monotonicity argument for magnetic operators together with a sharp blow-up analysis.

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Laura Abatangelo, Veronica Felli. 2015-04-01. Sharp asymptotic estimates for eigenvalues of Aharonov-Bohm operators with varying poles. https://arxiv.org/abs/1504.00252

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