The longitudinal dynamic correlation and dynamic susceptibility of the isotropic XY-model on the 1d alternating superlattice

J. P. de Lima, L. L. Goncalves

The dynamic susceptibility ${\chi }_Q^{zz}(\omega )$ of the isotropic XY-model (s=1/2) on the alternating superlattice (closed chain) in a transverse field $h$ is obtained exactly at arbitra…