Published May 14, 2024 | Version v1
Journal article

Emergence of elastic chiral Landau levels and snake states

  • 1. Department of Aeronautics and Astronautics, University of Washington, Seattle, Washington 98105, USA
  • 2. Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA
  • 3. Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003, USA
  • 4. Department of Mechanical Engineering, Seoul National University, Seoul 08826, Republic of Korea

Description

In this paper, we present a method for generating a synthetic gauge field in the vertical direction by linearly modulating the mass term in a Dirac equation model. This allows for the quantization of Landau levels through the generated pseudomagnetic field, with the chiral zeroth Landau level being topologically protected. An elastic snake state is realized using the coupling between the zeroth and the first Landau levels. For demonstration, our theoretical predictions are realized numerically in an elastic medium of truss structures arranged in a honeycomb lattice. Our results, supported by theory and simulations, establish a framework for generating pseudomagnetic fields in elastic systems with potential applications in waveguides and cloaking.

Additional details

Identifiers

DOI
10.1103/PhysRevB.109.184109;
arXiv
arXiv:2307.08887;
Crossref Funder ID
10.13039/100000964; 10.13039/100000001;

Publishing Information

Journal Title
Physical Review B
Journal Volume
109
Journal Issue
18
Journal Page Range
6 pgs.
ISSN
1550-235X

Optional Information

Copyright
©2024 American Physical Society
Contract/Grant/Project number
2023R1A2C2003705; 2022H1D3A2A03096579; PHY-2110030; DMS-2204702
Notes
Record automatically processed
Funding organization
Arthritis National Research Foundation; National Science Foundation