Местоположение издательства:Road Town, United Kingdom
Первая страница:1246
Последняя страница:1258
Аннотация:We study bound states in an s-wave superconducting strip on the surface of a topological superconductor
with the perpendicular Zeeman field. We prove analytically that an arbitrarily small local perturbation of
the Zeeman field generates Andreev bound states with energies near the superconducting gap edges, while
the (nonmagnetic) impurity potential does not produce such an effect. Rather large perturbations of the
Zeeman field can lead to the appearance of Andreev bound states with energies near zero. We analytically
find wave functions of the Andreev bound states under consideration. In contrast to the one-dimensional
case, the wave functions do not satisfy the conjugation conditions that are characteristic of Majorana
states because of the influence of neighboring subbands.