For quantum-dot Kitaev chains, the optimal Majorana sweet-spot—well-localized Majoranas together with a large excitation gap—occurs at the parity-crossing of the spin-split Andreev bound state in the mesoscopic superconducting segment.
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Optimal Majoranas in Mesoscopic Kitaev Chains
For quantum-dot Kitaev chains, the optimal Majorana sweet-spot—well-localized Majoranas together with a large excitation gap—occurs at the parity-crossing of the spin-split Andreev bound state in the mesoscopic superconducting segment.