Gate-tunable regular and chaotic electron dynamics in ballistic bilayer graphene cavities

L Seemann, A Knothe, M Hentschel - Physical Review B, 2023 - APS
The dispersion of any given material is crucial for its charge carriers' dynamics. For all-
electronic, gate-defined cavities in gapped bilayer graphene, we developed a trajectory …

Graphene billiards with fourfold symmetry

W Zhang, B Dietz - Physical Review Research, 2023 - APS
We report on the realization of a graphene billiard with a fourfold rotational symmetry, which
has the shape of a billiard with chaotic classical dynamics. The eigenstates are separated …

Semi-poisson statistics in relativistic quantum billiards with shapes of rectangles

B Dietz - Entropy, 2023 - mdpi.com
Rectangular billiards have two mirror symmetries with respect to perpendicular axes and a
twofold (fourfold) rotational symmetry for differing (equal) side lengths. The eigenstates of …

Haldane graphene billiards versus relativistic neutrino billiards

DX Nguyen, B Dietz - Physical Review B, 2024 - APS
We study fluctuation properties in the energy spectra of finite-size honeycomb lattices—
graphene billiards—subject to the Haldane-model on-site potential and next-nearest …

Tunable wave localization at the Dirac frequency in a metallic photonic crystal cavity

L Hu, E Wang, J Xia, W Du, G Qu, Y Wang, S Li, F Xu… - Optics …, 2024 - opg.optica.org
In this study, the two-dimensional (2D) triangular lattice metallic photonic crystals (PCs) in
visible and infrared bands have been utilized to achieve light confinement at the Dirac …

Mixing property of symmetrical polygonal billiards

RB Carmo, TA Lima - Physical Review E, 2024 - APS
The present work consists of a numerical study of the dynamics of irrational polygonal
billiards. Our contribution reinforces the hypothesis that these systems can be strongly …

Unveiling the universal class categorization of Altland-Zirnbauer in mesoscopic systems: probing entanglement and conductance fluctuations

RA Batista - 2023 - repositorio.ufpb.br
Neste trabalho, exploramos o uso das dez classes de simetria de Altland-Zirnbauer para
descrever o transporte quântico em sistemas mesoscópicos, focando em pontos quânticos …