Phase diagram of a family of one-dimensional nearest-neighbor tight-binding models with an exact mobility edge

Gong Long-Yan^{1, 2, 3, †}, Zhao Xiao-Xin²

(color online) The second moment versus eigenenergy E_β. (b) A partial enlarged view of panel (a) for eigenstates with E_β near . The vertical dashed line (cyan) denotes . Here, λ = −0.9, α = −0.52, and the lattice size N = 1597, 4181, and 6765, respectively.