  In this paper, the quantum entanglement dynamics of a qubit qubit compound
system in the isotropic XXX Heisenberg and anisotropic XYZ models with DM
interaction under magnetic fields is investigated. The system's initial state
is considered as a spin coherence state, and the entanglement dynamics of this
compound system is analyzed using the negativity criterion as an entanglement
measure to assess the impact of DM interaction and magnetic fields.
