We investigate the bulk orbital angular momentum in a two-dimensionaltime-reversal broken topological superconductor with the Rashba spin-orbitinteraction, the Zeeman interaction, and the $s$-wave pairing potential. Priorto the topological phase transition, we find the crossover from $s$ wave to $p$wave. For the large spin-orbit interaction, even in the topological phase,$L_z/N$ does not reach $-1/2$, which is the intrinsic value in chiral $p$-wavesuperconductors. Here $L_z$ and $N$ are the bulk orbital angular momentum andthe total number of electrons at zero temperature, respectively. Finally, wediscuss the effects of nonmagnetic impurities.
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机译：我们研究具有Rashba自旋轨道相互作用，Zeeman相互作用和$ s $波配对潜力的二维时间反转破碎拓扑超导体中的整体轨道角动量。在拓扑相变之前，我们发现从$ s $ wave到$ p $ wave的交叉。对于较大的自旋轨道相互作用，即使在拓扑阶段，$ L_z / N $也不会达到$ -1 / 2 $，这是手性$ p $波超导体的内在价值。 $ L_z $和$ N $分别是零轨道上的整体轨道角动量和电子总数。最后，我们讨论了非磁性杂质的影响。
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