Tuning of heat and charge transport by Majorana fermions

Author(s)

Ricco, L. S. ^[1] ; Dessotti, F. A. ^[1] ; Shelykh, I. A. ^{[2, 3]} ; Figueira, M. S. ^[4] ; Seridonio, A. C. ^{[1, 5]}

Affiliation

^[1] Univ Estadual Paulista, Dept Fis & Quim, UNESP, BR-15385000 Ilha Solteira, SP - Brazil

^[2] ITMO Univ, St Petersburg 197101 - Russia

^[3] Univ Iceland, Sci Inst, Dunhagi 3, IS-107 Reykjavik - Iceland

^[4] Univ Fed Fluminense, Inst Fis, BR-24210340 Niteroi, RJ - Brazil

^[5] Univ Estadual Paulista, Dept Fis, IGCE, UNESP, BR-13506900 Rio Claro, SP - Brazil

• Document type: Journal article
• Source: SCIENTIFIC REPORTS; v. 8, FEB 12 2018.
• Web of Science Citations: 3

Abstract

We investigate theoretically thermal and electrical conductances for the system consisting of a quantum dot (QD) connected both to a pair of Majorana fermions residing at the edges of a Kitaev wire and two metallic leads. We demonstrate that both quantities reveal pronounced resonances, whose positions can be controlled by tuning of an asymmetry of the couplings of the QD and a pair of MFs. Similar behavior is revealed for the thermopower, Wiedemann-Franz law and dimensionless thermoelectric figure of merit. The considered geometry can thus be used as a tuner of heat and charge transport assisted by MFs. (AU)

• FAPESP's process: 15/23539-8 - A novel manner of qubit storage: vacuum fluctuations and BICs of Majoranas assisted by a non-trivial Kondo effect
• Grantee: Luciano Henrique Siliano Ricco
• Support Opportunities: Scholarships in Brazil - Doctorate