Fig. 6: Energy spectrum and dynamics for different values of the site separation in the case of three lattice sites.

a Energy spectrum for different values of the site separations d. The red point marks the position of the BIC. Evolution of the absolute values of the probability amplitudes (b) ∣c1(t)∣, (c) ∣c2(t)∣, and (d) ∣c3(t)∣. The parameters are N = 3, \(\Omega =0.13\tilde{\omega }\), and \({\omega }_{0}=0.05\tilde{\omega }\).