Eur. Phys. J. B (2015) 88: 290
https://doi.org/10.1140/epjb/e2015-60613-4

Regular Article

Majorana fermions in the interacting T-shaped double quantum dot

Laboratory of physics of magnetism and photonic materials, Institut Teknologi Bandung, Ganesha 10, 40134 Bandung, Indonesia

^a e-mail: bdnapitu@fi.itb.ac.id

Received: 29 July 2015
Received in final form: 10 September 2015
Published online: 9 November 2015

Abstract

Non-equilibrium transport properties of the interacting T-shaped double quantum dot coupled with the topological superconductor are analyzed within the Keldysh Green’s function formalism. The low energy characteristics are found to be influenced by the interplay of quantum interference, electronic correlation, and the Majorana induced interaction such that the system can be driven onto either Kondo, Fano or Majorana dominated regime. It is demonstrated that the presence of the Majorana fermions at the edges of superconducting wire can be realized in the differential conductance and the zero-frequency shot noise when the system’s low energy is strongly influenced by the quantum interference effect.