Topological Anderson insulator in two-dimensional non-Hermitian systems

Liu Hongfang¹, Su Zixian¹, Zhang Zhi-Qiang^{1, †}, Jiang Hua^{1, 2, ‡}

The Re(E) versus Im(E) with (a)–(c) m = 1.7 and (d) m = 2.7, respectively. E is the eigenvalue of a square sample. Other parameters are fixed at γ = 0.4 and N = 50. (a) The periodic boundary of H_eff. (b), (d) The open boundary of H with m = 1.7 (b) and m = 2.7 (d). (c) The periodic boundary of H.