Unknown

Dataset Information

0

Observation of supersymmetric pseudo-Landau levels in strained microwave graphene.


ABSTRACT: Using an array of coupled microwave resonators arranged in a deformed honeycomb lattice, we experimentally observe the formation of pseudo-Landau levels in the whole crossover from vanishing to large pseudomagnetic field strengths. This result is achieved by utilising an adaptable setup in a geometry that is compatible with the pseudo-Landau levels at all field strengths. The adopted approach enables us to observe the fully formed flat-band pseudo-Landau levels spectrally as sharp peaks in the photonic density of states and image the associated wavefunctions spatially, where we provide clear evidence for a characteristic nodal structure reflecting the previously elusive supersymmetry in the underlying low-energy theory. In particular, we resolve the full sublattice polarisation of the anomalous 0th pseudo-Landau level, which reveals a deep connection to zigzag edge states in the unstrained case.

SUBMITTER: Bellec M 

PROVIDER: S-EPMC7438506 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

altmetric image

Publications

Observation of supersymmetric pseudo-Landau levels in strained microwave graphene.

Bellec Matthieu M   Poli Charles C   Kuhl Ulrich U   Mortessagne Fabrice F   Schomerus Henning H  

Light, science & applications 20200819


Using an array of coupled microwave resonators arranged in a deformed honeycomb lattice, we experimentally observe the formation of pseudo-Landau levels in the whole crossover from vanishing to large pseudomagnetic field strengths. This result is achieved by utilising an adaptable setup in a geometry that is compatible with the pseudo-Landau levels at all field strengths. The adopted approach enables us to observe the fully formed flat-band pseudo-Landau levels spectrally as sharp peaks in the p  ...[more]

Similar Datasets

| S-EPMC7438334 | biostudies-literature
| S-EPMC8384878 | biostudies-literature
| S-EPMC6839937 | biostudies-literature
| S-EPMC3658007 | biostudies-other
| S-EPMC4637907 | biostudies-other
2012-01-24 | GSE34789 | GEO
2011-02-12 | GSE27128 | GEO
| S-EPMC8429432 | biostudies-literature
| S-EPMC3432463 | biostudies-other
2012-01-24 | E-GEOD-34789 | biostudies-arrayexpress