Modified variable phase method for the solution of coupled radial Schrödinger equations

Abstract
A modified variable phase method for the numerical solution of coupled radial Schrödinger equations, which maintains linear independence for different sets of solution vectors, is suggested. The modification involves rearrangement of coupled equations to avoid the usual numerical instabilities associated with components of the wave function in their classically forbidden regions. The modified method is applied to nuclear structure calculations of halo nuclei within the hyperspherical harmonics approach. DOI: http://dx.doi.org/10.1103/PhysRevC.84.064308 ©2011 American Physical Society