论文标题
拓扑超导通过特殊点增强
Topological superconductivity enhanced by exceptional points
论文作者
论文摘要
Majorana零模式（MZM）作为拓扑超导体中的边缘状态出现，并且有望用于拓扑量子计算，但到目前为止，它们的检测是难以捉摸的。在这里，我们表明非热性可用于获得更大的稳健MZM。增强的性质是由于极端不稳定性的超导性而出现的，因此即使消失的小型超导顺序参数也已经打开了较大的能量差距，产生了稳定的MZM，并导致强大的超导对相关性。因此，我们的工作说明了使用非富特派异常点增强拓扑超导性的巨大潜力。
Majorana zero modes (MZMs) emerge as edge states in topological superconductors and are promising for topological quantum computation, but their detection has so far been elusive. Here we show that non-Hermiticity can be used to obtain dramatically more robust MZMs. The enhanced properties appear as a result of an extreme instability of exceptional points to superconductivity, such that even a vanishingly small superconducting order parameter already opens a large energy gap, produces well-localized MZMs, and leads to strong superconducting pair correlations. Our work thus illustrates the large potential of enhancing topological superconductivity using non-Hermitian exceptional points.
