Export citation

Export citation

Choose format for download:

Download Citation
  • Letter

Metric-induced edge-dominated spectra in hyperbolic trusses

Kailun Wang1,*, Jingming Chen2,*, Yue Shen1, Muyang Han1, Xiang Li3,†, Zhen Gao2,‡, and Ying Wu1,§

  • *These authors contributed equally to this work.
  • †Contact author: xli@wust.edu.cn
  • ‡Contact author: gaoz@sustech.edu.cn
  • §Contact author: yingwu@njust.edu.cn

Phys. Rev. B 114, L200101 – Published 30 October, 2026

DOI: https://doi.org/10.1103/zvnc-l4m6

Abstract

Edge states in lattices typically rely on defects, topology, or parameter tuning, and occupy narrow spectral windows. Here, we demonstrate an edge-dominated mechanism driven by the Poincaré conformal metric. By projecting the hyperbolic metric onto elastic trusses, we show that the spatially varying bar lengths naturally embed the metric into the structural dynamic properties. This spatial modulation of the local dynamic scale inherently drives higher-index eigenmodes toward the boundary, yielding an accumulation of edge states. Furthermore, conformal mapping extends this mechanism to arbitrary boundaries, enabling the design of interconnected boundary-channel networks. Transient wave propagation confirms boundary-guided transport, establishing a topology-free route for programmable wave localization and energy focusing in mechanical metamaterials.

Physics Subject Headings (PhySH)

Authorization Required

We need you to provide your credentials before accessing this content.

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation