Topological Majorana Lattice Model: Induced "Topological Superconductor"   on Topological Superconductor with Vortex-lattice
  In this paper we study an s-wave topological SC with a square vortex-lattice. We proposed a topological Majorana lattice model to describe this topological state. We found that the Majorana lattice model is really a "topological SC" on the parent topological SC. Such correspondence between the Majorana lattice model and the topological SC with vortex-lattice is another holographic feature of the topological state. In addition, the numerical calculations confirm our theoretical prediction. 
Jiang Zhou, Ya-Jie Wu, Rong-Wu Li, Jing He and Su-Peng Kou
cond-mat.supr-con cond-mat.str-el