论文标题
近端引起的拓扑超导体中的耗散浮标majoraga模式
Dissipative Floquet Majorana modes in proximity-induced topological superconductors
论文作者
论文摘要
我们研究了现实的浮雕拓扑超导体，这是一种邻近S波超导体的定期驱动的纳米线。由于超导接近效应引起的强能量和密度波动，因此Floquet Majorana线变得耗散。我们表明，在此耗散系统中，Floquet带结构仍然保存。特别是，我们发现Floquet拓扑结构理论不再简单地描述Floquet MajoraNA零和PI模式。我们还提出了一个有效的模型，以简化这些浮点major的寿命的计算，并发现可以通过外部驾驶场来设计寿命。
We study a realistic Floquet topological superconductor, a periodically driven nanowire proximitized to an equilibrium s-wave superconductor. Due to both strong energy and density fluctuations caused from the superconducting proximity effect, the Floquet Majorana wire becomes dissipative. We show that the Floquet band structure is still preserved in this dissipative system. In particular, we find that both the Floquet Majorana zero and pi modes can no longer be simply described by the Floquet topological band theory. We also propose an effective model to simplify the calculation of the lifetime of these Floquet Majoranas, and find that the lifetime can be engineered by the external driving field.
