2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39263We study properties of Z-vortices in the crossover region of the 3D SU(2) Higgs model. Correlators of the vortex currents with gauge field energy and Higgs field squared ("quantum vortex profile") reveal a structure that can be compared with a classical vortex. We define a core size and a penetration depth from the vortex profile. Z-vortices are found to interact with each other analogously to Abrikosov vortices in a type-I superconductor.4 pages, 4 EPS figures, uses crckapb.sty and epsfig.sty. Presented at the workshop "Lattice fermions and structure of the vacuum", 5-9 Oct. 1999, Dubna, RussiaHigh Energy Physics - LatticeHigh Energy Physics - Phenomenologytext