Continuous Topological Insulators Classification and Bulk Edge Correspondence

G Bal - arXiv preprint arXiv:2412.00919, 2024 - arxiv.org
This paper reviews recent results on the classification of partial differential operators
modeling bulk and interface topological insulators in Euclidean spaces. Our main objective …

[图书][B] Bound states of the magnetic Schrödinger operator

N Raymond - 2017 - ems.press
This book is a synthesis of recent advances in the spectral theory of the magnetic
Schrödinger operator. It can be considered a catalog of concrete examples of magnetic …

[HTML][HTML] Topological charge conservation for continuous insulators

G Bal - Journal of Mathematical Physics, 2023 - pubs.aip.org
This paper proposes a classification of elliptic (pseudo-) differential Hamiltonians describing
topological insulators and superconductors in Euclidean space by means of domain walls …

[HTML][HTML] Wiener–Hopf factorization approach to a bulk-boundary correspondence and stability conditions for topological zero-energy modes

A Alase, E Cobanera, G Ortiz, L Viola - Annals of Physics, 2023 - Elsevier
Both the physics and applications of fermionic symmetry-protected topological phases rely
heavily on a principle known as bulk-boundary correspondence, which predicts the …

Band functions in the presence of magnetic steps

PD Hislop, N Popoff, N Raymond… - … Models and Methods in …, 2016 - World Scientific
We complete the analysis of the band functions for two-dimensional magnetic Schrödinger
operators with piecewise constant magnetic fields. The discontinuity of the magnetic field …

Semiclassical propagation along curved domain walls

G Bal - Multiscale Modeling and Simulation, 2024 - SIAM
We analyze the propagation of two-dimensional dispersive and relativistic wavepackets
localized in the vicinity of the zero level set of a slowly varying domain wall modeling the …

Semiclassical analysis with vanishing magnetic fields

N Dombrowski, N Raymond - Journal of Spectral Theory, 2013 - ems.press
We analyze the 2D magnetic Laplacian in the semiclassical limit in the case when the
magnetic field vanishes along a smooth curve. In particular, we prove local and micro-local …

On the K-theory of magnetic algebras: Iwatsuka case

G De Nittis, J Gomez, DP Ojito - arXiv preprint arXiv:2410.04531, 2024 - arxiv.org
In the tight-binding approximation, an Iwatsuka magnetic field is modeled by a function on
$\mathbb {Z}^ 2$ with constant, but distinct values in the two parts of the lattice separated by …

Quantization of interface currents

M Kotani, H Schulz-Baldes… - Journal of Mathematical …, 2014 - pubs.aip.org
At the interface of two two-dimensional quantum systems, there may exist interface currents
similar to edge currents in quantum Hall systems. It is proved that these interface currents …

Interface currents and corner states in magnetic quarter-plane systems

DP Ojito - arXiv preprint arXiv:2212.06234, 2022 - arxiv.org
We study the propagation of currents along the interface of two $2 $-$ d $ magnetic systems,
where one of them occupies the first quadrant of the plane. By considering the tight-binding …