  The dynamic properties of the spin-1/2 anisotropic XY chain with the
Dzyaloshinskii-Moriya (DM) interaction in a transverse field are investigated.
Using the Jordan-Wigner transformation, the dynamic structure factors of the
model are evaluated rigorously (partially analytically and partially
numerically). The effects of the DM interaction on the frequency shapes of the
dynamic structure factors are discussed.
