论文标题
圆柱半导体量子线中的Majorana零模式
Majorana Zero Modes in Cylindrical Semiconductor Quantum Wire
论文作者
论文摘要
我们研究了基于$ K \ CDOT P $理论和离散的晶格模型的圆柱横截面半导体量子线中的Majorana零模式。在该模型中，讨论了电线中的无序电位的影响，并讨论了超导顺序参数的幅度和相位波动。我们发现，对于典型的电线几何，配对电势和自旋轨道耦合强度，在费米能能量附近的准二维子频段之间的耦合几乎完全是旋转偏振的，并且是完全旋转的，并且是完全旋转的，并且是拓扑状态的电子频带的数量。
We study Majorana zero modes properties in cylindrical cross-section semiconductor quantum wires based on the $k \cdot p$ theory and a discretized lattice model. Within this model, the influence of disorder potentials in the wire and amplitude and phase fluctuations of the superconducting order-parameter are discussed. We find that for typical wire geometries, pairing potentials, and spin-orbit coupling strengths, coupling between quasi-one-dimensional sub-bands is weak, low-energy quasiparticles near the Fermi energy are nearly completely spin-polarized, and the number of electrons in the active sub-bands of topological states is small.
