We propose a scheme to investigate the behavior of a ballistic nanowire system with Rashba interaction within a perpendicular magnetic field. The quantum entanglement of a nanowire system is discussed via the negativity. When the strong and weak magnetic fields are applied, we discuss the influence of the spin-orbit interaction and the initial states on the population inversion and the negativity. Our results show that the degree of entanglement for the nanowire system mainly depends on the effect of the spin-orbit interaction and the initial states of the system. This opens up new avenues for designing nanowire systems for future quantum computation and communication applications.

我们提出了一种方案来研究在垂直磁场内具有Rashba相互作用的弹道纳米线系统的行为。通过负性讨论了纳米线系统的量子纠缠。当施加强磁场和弱磁场时，我们讨论了自旋轨道相互作用和初始状态对总体反演和负性的影响。我们的结果表明，纳米线系统的缠结程度主要取决于自旋轨道相互作用的影响和系统的初始状态。这为未来的量子计算和通信应用设计纳米线系统开辟了新途径。