Heat current generated by electronic transport through a quantum dot (QD) coupled to both a phonon bath and a Majorana nanowire hosting Majorana bound states (MBSs) is theoretically studied in the framework of nonequilibrium Green's function technique. The calculated numerical results show that electrical current can be either enhanced or suppressed by the combined influences of the phonon bath and the MBSs at certain bias voltage regimes. The enhancement and suppression of the current's magnitude for a fixed bias voltage will be reversed due to the direct hybridization between the MBSs. The simultaneous coupling between both of the two MBSs will amplify the function of the MBSs on the current, with unchanged essential the same qualitative impacts. The heat generation by the electrical current can be fully adjusted by the dot-MBSs coupling, direct hybridization between the MBSs and positions of the dot level. By properly choosing the above parameters, the heat generation can be suppressed even for increased electrical current, which is favorable in removing waste heat generated by electrical current flowing through low-dimensional circuits.

中文翻译：

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与马约拉纳纳米线杂交的量子点中电流产生的热量

在非平衡格林函数技术的框架内，理论上研究了通过电子传输通过量子点（QD）产生的热电流，该量子点耦合到声子浴和承载马里亚纳邦定态（MBSs）的马里亚纳纳米线。计算结果表明，在一定的偏压范围内，声子浴和MBS的综合作用可以增强或抑制电流。对于固定偏置电压，电流幅度的增强和抑制将由于MBS之间的直接杂交而被逆转。两个MBS之间的同时耦合将放大MBS在电流上的功能，而本质上相同的定性影响不变。电流产生的热量可以通过点-MBSs耦合来完全调节，MBS和点级位置之间的直接杂交。通过适当地选择上述参数，即使增加电流也可以抑制发热，这有利于去除由流经低维电路的电流产生的废热。