2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/24959A three-dimensional anisotropic quantum well placed in an adiabatically precessing uniform magnetic field is considered and an explicit formula for the Berry phase is obtained. To get the Berry phase, a purely algebraic algorithm of reducing a quadratic Hamiltonian to the canonical form via symplectic transformations of the phase space is presented.14 pages, no figuresMesoscale and Nanoscale PhysicsMathematical Physicstext