论文标题
磁性 - 渗透导体混合系统中的高阶拓扑超导性
Higher Order Topological Superconductivity in Magnet-Superconductor Hybrid Systems
论文作者
论文摘要
拓扑超导体和随后的Majorana零模式的量子工程可能是实现新范式来实现拓扑量子计算和基于拓扑的设备的关键。通过自定义设计其磁性层的复杂结构来创建拓扑超导的实验性平台已被证明是实验性的通用平台。在这里，我们证明，可以使用堆叠的磁性结构在二维MSH系统中实现高阶拓扑超导性（HOTSC）。我们表明，使用原子操纵技术，HOTSC对特定磁性堆叠的敏感性为特定的磁性堆积的敏感性打开了前所未有的能力，可以在微不足道和拓扑相之间调整系统。我们建议在MSH系统中实现HOTSC，尤其是特征性Majorana角模式的存在，允许实现基于测量的拓扑量子计算协议。
Quantum engineering of topological superconductors and of the ensuing Majorana zero modes might hold the key for realizing a new paradigm for the implementation of topological quantum computing and topology-based devices. Magnet-superconductor hybrid (MSH) systems have proven to be experimentally versatile platforms for the creation of topological superconductivity by custom-designing the complex structure of their magnetic layer. Here, we demonstrate that higher order topological superconductivity (HOTSC) can be realized in two-dimensional MSH systems by using stacked magnetic structures. We show that the sensitivity of the HOTSC to the particular magnetic stacking opens an unprecedented ability to tune the system between trivial and topological phases using atomic manipulation techniques. We propose that the realization of HOTSC in MSH systems, and in particular the existence of the characteristic Majorana corner modes, allows for the implementation of a measurement-based protocols for topological quantum computing.
