Linear vibronic coupling $\sum_i c_i |es\rangle \langle es| (b_i + b_i^\dagger)$ + Hvib can be mapped to nearest neighbor chain by Lanczos process with initial vector $\sum_i c_i |v_i\rangle$ and operator, Hvib. (The alpha, beta in Hessenberg matrix correspond to new omega and hopping coefficient t)
Linear vibronic coupling$\sum_i c_i |es\rangle \langle es| (b_i + b_i^\dagger)$ + Hvib can be mapped to nearest neighbor chain by Lanczos process with initial vector $\sum_i c_i |v_i\rangle$ and operator, Hvib. (The alpha, beta in Hessenberg matrix correspond to new omega and hopping coefficient t)