In the framework of the microscopic Bogoliubov-de Gennes theory, we investigate the topological defect states in mesoscopic chiral p-wave superconducting rectangles. In the absence of applied magnetic field, stable multi-domain-wall states containing two or more domain walls can be obtained with the increase of the aspect ratio of the rectangle at zero temperature. When the external field is applied, the multi-domain-wall state can only be found as the ground state at finite flux. Interestingly, a hybrid state consisting of two domain walls and one centered vortex tends to emerge as the zero-field ground state of the rectangular system. For enlarged applied flux, several coreless skyrmionic states with different enclosed structures of domain walls as well as the half-quantum vortex-antivortex pair can appear in the present sample.

在微观Bogoliubov-de Gennes理论的框架内，我们研究了介观手性p的拓扑缺陷状态波超导矩形。在没有施加磁场的情况下，可以通过在零温度下矩形长宽比的增加来获得包含两个或更多个畴壁的稳定的多畴壁状态。当施加外部场时，只能在有限通量下将多畴壁状态作为基态。有趣的是，由两个畴壁和一个居中涡旋组成的混合态趋向于作为矩形系统的零场基态出现。对于增加的通量，在本样本中可能会出现几种具有不同畴壁封闭结构的无核天体离子态以及半量子涡旋-反涡旋对。