Moreno-Cardoner, M.Mur Petit, JordiGuilleumas, MontserratPolls Martí, ArturSanpera Trigueros, AnnaLewenstein, Maciej2010-06-112010-06-1120070031-9007https://hdl.handle.net/2445/12850We study the spin dynamics of quasi-one-dimensional F=1 condensates both at zero and finite temperatures for arbitrary initial spin configurations. The rich dynamical evolution exhibited by these nonlinear systems is explained by surprisingly simple principles: minimization of energy at zero temperature and maximization of entropy at high temperature. Our analytical results for the homogeneous case are corroborated by numerical simulations for confined condensates in a wide variety of initial conditions. These predictions compare qualitatively well with recent experimental observations and can, therefore, serve as a guidance for ongoing experiments.4 p.application/pdfeng(c) American Physical Society, 2007Dinàmica molecularTeoria quànticaMolecular dynamicsQuantum theoryinfo:eu-repo/semantics/article552342info:eu-repo/semantics/openAccess