4.6 Article

Phonon-assisted Andreev reflection driven by a Majorana zero mode

Journal

PHYSICA SCRIPTA
Volume 96, Issue 1, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1402-4896/abc4a5

Keywords

Majorana zero mode; Quantum dot; Electron-phonon interaction; Andreev re?ection

Funding

  1. LiaoNing Revitalization Talents Program [XLYC1907033]
  2. Funds for the Central Universities [N2002005, N180503020]
  3. National Natural Science Foundation of China [11 905 027]

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In this study, we investigate the Andreev reflection in a heterostructure formed by the indirect coupling between a metallic lead and Majorana zero mode via a quantum dot affected by the electron-phonon interaction. Our results show that the zero-bias conductance value governed by the Majorana zero mode is independent of the electron-phonon interaction at zero temperature, but the interaction exacerbates the suppression of the magnitude of zero-bias conductance at finite temperature. These findings can help in distinguishing the signature of the Majorana zero mode in the Andreev reflection process.
We investigate the Andreev reflection in the heterostructure formed by the indirect coupling between the metallic lead and Majorana zero mode (MZM) via one quantum dot which suffers from the electron-phonon interaction. Our calculation results show that at the zero-temperature limit, the MZM-governed zero-bias conductance value is independent of the electron-phonon interaction. However at finite temperature, the electron-phonon interaction exacerbates the suppression of the magnitude of zero-bias conductance. We believe that the results in this work can help to further differentiate the signature of the MZM in the Andreev reflection process.

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