An Anyon Model in a Toric Honeycomb Lattice  

作　　者：梁龙 虞跃 

机构地区：[1]Institute of Theoretical Physics,Chinese Academy of Sciences

出　　处：《Communications in Theoretical Physics》2011年第1期80-84,共5页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation of China;the National Program for Basic Research of MOST of China;the Key Lab of Frontiers in Theoretical Physics of CAS and a Fund From CAS

摘　　要：We study an anyon model in a toric honeycomb lattice. The ground states and the low-lying excitations coincide with those of Kitaev toric code model and then the excitations obey mutual semionic statistics. This model is helpful to understand the toric code of anyons in a more symmetric way. On the other hand, there is a direct relation between this toric honeycomb model and a boundary coupled Ising chain array in a square lattice via Jordan-Wigner transformation. We discuss the equivalence between these two models in the low-lying sector and realize these anyon excitations in a conventional fermion system. The analysis for the ground state degeneracy in the last section can also be thought of as a complementarity of our previous work [Phys. A： Math. Theor. 43 （2010） 105306].

关 键 词：ANYON toric code 

分 类 号：O571[理学—粒子物理与原子核物理]