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

Document Type

Article

Publication Date

1-1-2023

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.

Identifier

85148321152 (Scopus)

Publication Title

Physical Review Research

External Full Text Location

https://doi.org/10.1103/PhysRevResearch.5.L012012

ISSN

26431564

Issue

1

Volume

5

Grant

2016136

Fund Ref

Nanjing Institute of Technology

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