Observation of Majorana-like bound states in metamaterial-based Kitaev chain analogs

Kai Qian, David J. Apigo, Karmela Padavić, Keun Hyuk Ahn, Smitha Vishveshwara, Camelia Prodan

Research output: Contribution to journalArticlepeer-review

Abstract

We experimentally demonstrate that Majorana-like bound states (MLBSs) can occur in quasi-one-dimensional metamaterials, analogous to Majorana zero modes (MZMs) in the Kitaev chain in terms of mode spectrum and mode wave functions. In a mechanical spinner ladder system, we observe a topological phase transition and spectral-gap-protected edge MLBSs. We characterize phase controllable hybridization and the decaying and oscillatory nature of these MLBS pairs. It is shown that the hybridization can be tuned to yield the analog of parity switching in MZMs. We find strong agreements with theory.

Original languageEnglish (US)
Article numberL012012
JournalPhysical Review Research
Volume5
Issue number1
DOIs
StatePublished - Jan 2023

ASJC Scopus subject areas

  • General Physics and Astronomy

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