ArticleNature communications2024
Observation of continuum Landau modes in non-Hermitian electric circuits.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Directed Interband Response at Null Biorthogonal Quantum-Geometric Components.Entropy (Basel, Switzerland) · 2026Article
- Loss induced delocalization of topological boundary modes.Nature communications · 2025Article
- Non-Hermitian Dirac cones with valley-dependent lifetimes.Nature communications · 2025Article
- Topolectrical space-time circuits.Nature communications · 2025Article
- Dynamic protected states in the non-Hermitian system.Scientific reports · 2024Article
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Authors and funding
6 authors.
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Abstract
Continuum Landau modes - predicted recently in a non-Hermitian Dirac Hamiltonian under a uniform magnetic field - are continuous bound states with no counterparts in Hermitian systems. However, they have still not been confirmed in experiments. Here, we report an experimental observation of continuum Landau modes in non-Hermitian electric circuits, in which the non-Hermitian Dirac Hamiltonian is simulated by non-reciprocal hoppings and the pseudomagnetic field is introduced by inhomogeneous complex on-site potentials. Through measuring the admittance spectrum and the eigenstates, we successfully verify key features of continuum Landau modes. Particularly, we observe the exotic voltage response acting as a rainbow trap or wave funnel through full-field excitation. This response originates from the linear relationship between the modes' center position and complex eigenvalues. Our work builds a bridge between non-Hermiticity and magnetic fields, and thus opens an avenue to explore exotic non-Hermitian physics.
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