论文标题
从分段的费米表面创建majoraana模式
Creating Majorana modes from segmented Fermi surface
论文作者
论文摘要
我们提出了一个新的平台，用于从2D无间隙超导状态在平面内Zeeman领域的旋转系统中创建Majoraana绑定状态。拓扑1D通道是通过从周围完全间隙的超导区域的Andreev反射对准粒子量限制而形成的。我们的建议可以使用狭窄的磁绝缘子在接近的3D拓扑绝缘子上实现。该设置具有关键优势，其中包括：小型Zeeman田地，不需要对化学势的微调，去除低能量有害状态以及较大的可达到的拓扑间隙。
We present a new platform for creating Majorana bound states from 2D gapless superconducting state in spin-helical systems under the in-plane Zeeman field. Topological 1D channels are formed by quantum confinement of quasiparticles via Andreev reflection from the surrounding fully gapped superconducting region. Our proposal can be realized using narrow strips of magnetic insulators on top of proximitized 3D topological insulators. This setup has key advantages that include: small Zeeman fields, no required fine-tuning of chemical potential, removal of the low-energy detrimental states, and large attainable topological gap.
