Out-of-equilibrium voltage and thermal bias response of a quantum dot hybrid system coupled to topological superconductor
Journal of Magnetism and Magnetic Materials(2024)
摘要
We investigate theoretically the out-of-equilibrium transport properties of a single-level quantum dot coupled to a normal metal electrode and attached to a topological superconductor. Both voltage and thermal bias responses of the system in the nonequilibrium regime are studied. To obtain transport characteristics we used the nonequilibrium Green’s function approach. Particularly, we calculated current and the corresponding differential conductance in two distinct cases. In the former situation, the charge current is induced by applying a bias voltage, whereas in the latter case it is generated by setting temperature difference between the leads with no bias voltage.
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关键词
Quantum dot,Majorana fermions,Topological superconductor,Nonequilibrium transport,Thermocurrent
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