Artículos de revistas
Topological isoconductance signatures in Majorana nanowires
Fecha
2021-12-01Registro en:
Scientific Reports, v. 11, n. 1, 2021.
2045-2322
10.1038/s41598-021-96415-3
2-s2.0-85113741239
Autor
University of Iceland
Universidade Estadual Paulista (UNESP)
ITMO University
Universidade Federal Fluminense (UFF)
Institución
Resumen
We consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana bound states (MBSs) at the opposite ends. It is demonstrated that if highly nonlocal and nonoverlapping MBSs are formed in the system, the zero-bias Andreev conductance through the dot exhibits characteristic isoconductance profiles with the shape depending on the spin asymmetry of the coupling between the dot and the topological superconductor. Otherwise, for overlapping MBSs with less degree of nonlocality, the conductance is insensitive to the spin polarization and the isoconductance signatures disappear. This allows to propose an alternative experimental protocol for probing the nonlocality of the MBSs in Majorana nanowires.