Pauli Hamiltonians with an Aharonov–Bohm flux

W Borrelli, M Correggi, D Fermi - Journal of Spectral Theory, 2024 - ems.press
We study a two-dimensional Pauli operator describing a charged quantum particle with spin
1= 2 moving on a plane in presence of an orthogonal Aharonov–Bohm magnetic flux. We …

Bulk–edge correspondence for unbounded Dirac–Landau operators

HD Cornean, M Moscolari, KS Sørensen - Journal of Mathematical …, 2023 - pubs.aip.org
We consider two-dimensional unbounded magnetic Dirac operators, either defined on the
whole plane or with infinite mass boundary conditions on a half-plane. Our main results use …

Eigenvalues of the magnetic Dirichlet Laplacian with constant magnetic field on disks in the strong field limit

M Baur, T Weidl - Analysis and Mathematical Physics, 2025 - Springer
We consider the magnetic Dirichlet Laplacian with constant magnetic field on domains of
finite measure. First, in the case of a disk, we prove that the eigenvalue branches with …

Counting negative eigenvalues for the magnetic Pauli operator

S Fournais, RL Frank, M Goffeng, A Kachmar… - arXiv preprint arXiv …, 2023 - arxiv.org
We study the Pauli operator in a two-dimensional, connected domain with Neumann or
Robin boundary condition. We prove a sharp lower bound on the number of negative …

The dirac bag model in strong magnetic fields

JM Barbaroux, L Le Treust, N Raymond… - Pure and Applied …, 2023 - msp.org
We study Dirac operators on two-dimensional domains coupled to a magnetic field
perpendicular to the plane. We focus on the infinite-mass boundary condition (also called …

Quantitative magnetic isoperimetric inequality

R Ghanta, L Junge, L Morin - Journal of Spectral Theory, 2024 - ems.press
In 1996 Erdős showed that among planar domains of fixed area, the smallest principal
eigenvalue of the Dirichlet Laplacian with a constant magnetic field is uniquely achieved on …

Tunneling for the -Operator

J Sjöstrand, M Vogel - Vietnam Journal of Mathematics, 2024 - Springer
We study the small singular values of the 2-dimensional semiclassical differential operator
P= 2 e-ϕ/h∘ h D z¯∘ e ϕ/h on S 1+ i S 1 and on S 1+ i R, where ϕ is given by sin y and by y …

The magnetic Laplacian on the disc for strong magnetic fields

A Kachmar, G Miranda - Journal of Mathematical Analysis and Applications, 2025 - Elsevier
The magnetic Laplacian on a planar domain under a strong constant magnetic field has
eigenvalues close to the Landau levels. We study the case when the domain is a disc and …

Magnetic Dirac systems: Violation of bulk-edge correspondence in the zigzag limit

JM Barbaroux, HD Cornean, L Le Treust… - Letters in Mathematical …, 2024 - Springer
We consider a Dirac operator with constant magnetic field defined on a half-plane with
boundary conditions that interpolate between infinite mass and zigzag. By a detailed study …

Edge States for Generalized Iwatsuka Models: Magnetic Fields Having a Fast Transition Across a Curve

A Giunti, JJL Velázquez - Annales Henri Poincaré, 2023 - Springer
In this paper, we study the localization and propagation properties of the edge states
associated with a class of magnetic Laplacians in R 2. We assume that the intensity of the …