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arXiv · 2201.12377

Observation of Phase Controllable Majorana-like Bound States in Metamaterial-based Kitaev Chain Analogues

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

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

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Kai Qian, David J. Apigo, Karmela Padavić, Keun Hyuk Ahn, Smitha Vishveshwara, Camelia Prodan. 2022-01-28. Observation of Phase Controllable Majorana-like Bound States in Metamaterial-based Kitaev Chain Analogues. https://arxiv.org/abs/2201.12377

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