A new 'chiral overlap' quantity bounds how much disorder can split a near-zero-energy state, explaining how topologically trivial Andreev states can mimic Majorana robustness.
We note that unlike the uniform superconductor case, the left MBS in the NS geometry leaks into the normal region due to the absence of a pair- ing gap ∆ there, see Fig
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Disorder-robust trivial Majorana-like states from smooth confinement in chiral superconducting nanowires
A new 'chiral overlap' quantity bounds how much disorder can split a near-zero-energy state, explaining how topologically trivial Andreev states can mimic Majorana robustness.