title: Inert States of spin-S systems.
abstract: We present a simple but efficient geometrical method for determining the inert states of spin-S systems. It can be used if the system is described by a spin vector of a spin-S particle and its energy is invariant in spin rotations and phase changes. Our method is applicable to an arbitrary S and it is based on the representation of a pure spin state of a spin-S particle in terms of 2S points on the surface of a sphere. We use this method to find candidates for some of the ground states of spinor Bose-Einstein condensates.
authors.affiliation: Department of Physics, University of Turku, FI-20014, Turun Yliopisto, Finland.
authors.forename: H
authors.initials: H
authors.lastname: Mäkelä
authors.forename: K-A
authors.initials: KA
authors.lastname: Suominen