We calculate the current noise power spectrum in a nanoscopic interferometerconsisting of a Majorana bound state (MBS) and a localized spin. We show thatfor large voltage (though less than the superconducting gap) several strongresonance peaks appear at frequencies that depend on the Zeeman splitting ofthe localized spin and on its tunneling to the localized spin. We also evaluatethe differential conductance and find the unitary limit peak $2e^2/h$ at zerovoltage as well as peaks at voltages corresponding to the resonances. Wepropose that detection of the resonances and related peaks in the differentialconductance provide a strong support for the presence of an MBS.
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机译：我们在由马约拉纳束缚态（MBS）和局部自旋组成的纳米干涉仪中计算当前的噪声功率谱。我们表明，对于大电压（尽管小于超导间隙），在取决于局部自旋的塞曼分裂及其隧穿到局部自旋的频率上会出现几个强共振峰。我们还评估了差分电导并找到零电压下的单一极限峰$ 2e ^ 2 / h $以及与谐振相对应的电压下的峰。我们提出，对差分电导中的谐振和相关峰的检测为MBS的存在提供了有力的支持。
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