2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/133052We study the effect of a phase shift on the amount of transferrable two-spin entanglement in a spin chain. We consider a ferromagnetic Heisenberg/XY spin chain, both numerically and analytically, and two mechanisms to generate a phase shift, the Aharonov-Casher effect and the Dzyaloshinskii-Moriya interaction. In both cases, the maximum attainable entanglement is shown to be significantly enhanced, suggesting its potential usefulness in quantum information processing.7 pages, 5 figures. v2: a fig added, the main text modified a bitQuantum Physicstext