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Article Dans Une Revue Quantum frontiers Année : 2023

Compact localized boundary states in a quasi-1D electronic diamond-necklace chain

Résumé

Zero-energy modes localized at the ends of one-dimensional (1D) wires hold great potential as qubits for fault-tolerant quantum computing. However, all the candidates known to date exhibit a wave function that decays exponentially into the bulk and hybridizes with other nearby zero-modes, thus hampering their use for braiding operations. Here, we show that a quasi-1D diamond-necklace chain exhibits an unforeseen type of robust boundary state, namely compact localized zero-energy modes that do not decay into the bulk. We find that this state emerges due to the presence of a latent symmetry in the system. We experimentally realize the diamond-necklace chain in an electronic quantum simulator setup.

Dates et versions

hal-04349379 , version 1 (17-12-2023)

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S. Kempkes, Pierre Capiod, S. Ismaili, J. Mulkens, L. Eek, et al.. Compact localized boundary states in a quasi-1D electronic diamond-necklace chain. Quantum frontiers, 2023, 2 (1), pp.1. ⟨10.1007/s44214-023-00026-0⟩. ⟨hal-04349379⟩
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