Effect of assisted hopping on spin-dependent thermoelectric transport through correlated quantum dot

Górski, Grzegorz; Kucab, Krzysztof

doi:10.1016/j.physb.2018.06.039

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Cited by 6 publications

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“…For ordinary N‐QD‐N system (without coupling with Majorana wire) in the electron‐hole symmetry case

P_{normalG} = 0

for all values of the Zeeman splitting energy (see ref. ). The coupling with Majorana wire generates the non‐zero value of P G for

p \neq 0.5

.…”

Section: Numerical Resultsmentioning

confidence: 97%

The Spin‐Dependent Coupling in the Hybrid Quantum Dot–Majorana Wire System

Górski

Kucab

2018

Physica Status Solidi (b)

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The transport properties of a quantum dot coupled to two metallic contacts and side‐coupled to a topological superconductor wire hosting Majorana zero energy modes (Majorana wire) have been studied. The spin‐dependent tunneling amplitude between quantum dot and Majorana wire has been assumed. The polarization of tunneling amplitudes causes the polarization of spin‐dependent zero‐bias conductance, but the total conductance of a quantum dot depends very weakly on the polarization of tunneling amplitudes. The complex behavior of the zero‐bias anomaly of conductance in the presence of an external magnetic field is shown. The zero‐bias conductance peaks at high external magnetic field can be the fingerprint of the presence of Majorana fermions.

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“…For ordinary N‐QD‐N system (without coupling with Majorana wire) in the electron‐hole symmetry case