Experimental realization of chiral Landau levels in two-dimensional Dirac cone systems with inhomogeneous effective mass.

ABSTRACT: Chiral zeroth Landau levels are topologically protected bulk states. In particle physics and condensed matter physics, the chiral zeroth Landau level plays a significant role in breaking chiral symmetry and gives rise to the chiral anomaly. Previous experimental works on such chiral Landau levels are mainly based on three-dimensional Weyl degeneracies coupled with axial magnetic fields. Their realizations using two-dimensional Dirac point systems, being more promising for future applications, were never experimentally realized before. Here we propose an experimental scheme for realizing chiral Landau levels in a two-dimensional photonic system. By introducing an inhomogeneous effective mass through breaking local parity-inversion symmetries, a synthetic in-plane magnetic field is generated

SUBMITTER: Jia H 

PROVIDER: S-EPMC10319816 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature