Skip to content
DraconiticResearch
Search Sources API
178,970 studies31 sourcesUpdated 51 min ago
PreprintarXiv licencearXiv

Topological Acoustic Metamaterials with Synthetic Magnetism: Observation of Hofstadter Spectrum and Topological Edge States

  • Elena Rybalova
  • Jackson Saunders
  • Curtis Rasmussen
  • Nicholas H. Patino
  • Emil Prodan
  • Massimo Ruzzene
  • Camelia Prodan
Open at sourcePDFDOICite

Abstract

Architected materials are increasingly used to implement topological dynamics, yet realizing the gauge fields and symmetries that protect the topology with purely passive elements remains the central practical challenge. Here we turn a previously proposed theoretical strategy into an integrated platform that accepts a theoretical model as input and returns a passive acoustic metamaterial with identical dynamics. We demonstrate it experimentally on the Hofstadter model at θ= 2π/3, fabricating a spin-Chern insulator whose two sectors carry Chern numbers Cs = ± 1, and observe the predicted helical edge states.

Related

  1. Topological Criticality with Charge-3e Fluctuations in the SU(3) Triangular-Lattice Hofstadter--Hubbard Model
    Yang Liu, Ya-Hui Zhang, Xue-Yang Song
    arXivPreprintCC BY-NC-SA 4.0Full textCondensed matterarXiv
  2. Observation of topological Berry phases with a single phonon in an ion microtrap array
    Justin F. Niedermeyer, Nathan K. Lysne, Katherine C. McCormick +11
    Physical Review XPeer-reviewedCC BY 4.0Atomic, molecular & optical physicsCrossref
  3. Observation of a topological defect state in the quantum Rabi model
    Kyungmin Lee, Jiyong Kang, Sunkyu Yu +3
    arXivPreprintCC BY 4.0Full textQuantum physics & quantum informationarXiv
  4. Observation of topological surface phonons in diamond with nonlinear optics
    Qi Wang, Xinyi Liu, Xinyue Sheng +8
    arXivPreprintCC BY-NC-ND 4.0Full textCondensed matterarXiv
  5. Observation of a topological edge state among localized bulk states in the anisotropic quantum Rabi model
    Sungjoo Lim, Chanyang Im, Christopher G. Yale +7
    arXivPreprintCC BY 4.0Full textAtomic, molecular & optical physicsQuantum physics & quantum informationarXiv

Cite

BibTeXRIS
BibTeX
@misc{rybalova2026topological,
  title = {{Topological Acoustic Metamaterials with Synthetic Magnetism: Observation of Hofstadter Spectrum and Topological Edge States}},
  author = {Elena Rybalova and Jackson Saunders and Curtis Rasmussen and Nicholas H. Patino and Emil Prodan and Massimo Ruzzene and Camelia Prodan},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.02262},
  eprint = {2611.02262},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.02262},
}
RIS
TY  - UNPB
TI  - Topological Acoustic Metamaterials with Synthetic Magnetism: Observation of Hofstadter Spectrum and Topological Edge States
AU  - Elena Rybalova
AU  - Jackson Saunders
AU  - Curtis Rasmussen
AU  - Nicholas H. Patino
AU  - Emil Prodan
AU  - Massimo Ruzzene
AU  - Camelia Prodan
PY  - 2026
DA  - 2026/11/01
PB  - arXiv
DO  - 10.48550/arxiv.2611.02262
UR  - https://arxiv.org/abs/2611.02262
AB  - Architected materials are increasingly used to implement topological dynamics, yet realizing the gauge fields and symmetries that protect the topology with purely passive elements remains the central practical challenge. Here we turn a previously proposed theoretical strategy into an integrated platform that accepts a theoretical model as input and returns a passive acoustic metamaterial with identical dynamics. We demonstrate it experimentally on the Hofstadter model at θ= 2π/3, fabricating a spin-Chern insulator whose two sectors carry Chern numbers C_s = ± 1, and observe the predicted helical edge states.
ER  -