We consider a new model system supporting Majorana zero modes based on semiconductor nanowires with a full superconducting shell. We demonstrate that, in the presence of spin-orbit coupling in the semiconductor induced by a radial electric field, the winding of the superconducting order parameter leads to a topological phase supporting Majorana zero modes. The topological phase persists over a large range of chemical potentials and can be induced by a predictable and weak magnetic field piercing the cylinder. The system can be readily realized in semiconductor nanowires covered by a full superconducting shell, opening a pathway for realizing topological quantum computing proposals.

中文翻译：

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全壳纳米线中通量诱导的拓扑超导性

我们考虑了一种支持 Majorana 零模式的新模型系统，该系统基于具有完整超导壳的半导体纳米线。我们证明，在由径向电场引起的半导体中存在自旋轨道耦合时，超导阶参数的绕组导致支持马约拉纳零模式的拓扑相位。拓扑相在很大的化学势范围内持续存在，并且可以由穿透圆柱体的可预测的弱磁场引起。该系统可以在被全超导壳覆盖的半导体纳米线中轻松实现，为实现拓扑量子计算方案开辟了道路。