论文标题
多型和超导量子线中的Majorana模式
Majorana modes in multiband superconducting quantum wires
论文作者
论文摘要
我们通过分析计算Andreev结合状态的光谱在半限制的超导电线中，并具有任意数量的频段越过化学势。假定电线的正常状态具有反对称对称性A（时间逆转或与晶体学点组操作的组合），A^2 = -1或+1。超导顺序参数和/或边界散射可能会破坏这种对称性。我们提供了一个独立于模型的证据，证明了带有奇数频带的电线末端附近的一个Majorana模式存在。
We calculate analytically the spectrum of the Andreev bound states in a half-infinite superconducting wire with an arbitrary number of bands crossing the chemical potential. The normal state of the wire is assumed to have an antiunitary symmetry A (time reversal or its combination with a crystallographic point group operation), with A^2=-1 or +1. This symmetry may be broken by the superconducting order parameter and/or the boundary scattering. We present a model-independent proof of the existence of one Majorana mode near the end of the wire with an odd number of bands.
