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arXiv 1402.7353cond-mat.mes-hallcond-mat.supr-con
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受驱动耦合量子点中的可调Floquet Majorana费米子

Tunable Floquet Majorana Fermions in Driven Coupled Quantum Dots

Yantao Li, Arijit Kundu, Fan Zhong, Babak Seradjeh

摘要:

我们提出了一个系统的耦合量子点在接近超导体和单独的交流电位驱动,实现和检测Floquet马约拉纳费米子。我们表明,Floquet马约拉纳费米子的外观可以很好地控制在两个点的驱动频率,振幅和相位差的扩展参数空间。虽然这些马约拉纳费米子没有拓扑保护,高度可调的设置提供了一个现实的系统,用于观察与马约拉纳费米子相关的奇异物理以及它们的动力学生成和操纵。

英文摘要:

We propose a system of coupled quantum dots in proximity to a superconductor and driven by separate ac potentials to realize and detect Floquet Majorana fermions. We show that the appearance of Floquet Majorana fermions can be finely controlled in the expanded parameter space of the drive frequency, amplitude, and phase difference across the two dots. While these Majorana fermions are not topologically protected, the highly tunable setup provides a realistic system for observing the exotic physics associated with Majorana fermions as well as their dynamical generation and manipulation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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