\(2π\)-periodic Aharanov-Bohm effect as a signature of nonlocal correlation of Majorana bound states

Masayuki Sugeta, Takeshi Mizushima, Satoshi Fujimoto

Published 2022-05-16Version 1

We present the \(2\pi\)-periodic Aharonov-Bohm (AB) effect as a verification scheme of the nonlocal correlation of Majorana zero modes (MZMs) without the restriction of fermion parity. We demonstrate the topological protection of the AB effect, where Andreev reflection mediated by MZMs strongly enhances the phase dependence. We investigate the influence of trivial bound states and show that a nonlocal index parameter enables a more explicit distinction between the trivial and topological bound states than local conductance measurements.