Finite Element Formulation of the Bloch Equations with Dipolar Field Effects

Details Finite Element Formulation of the Bloch Equations with Dipolar Field Effects Finite Element Formulation of the Bloch Equations with Dipolar Field Effects

2007-06-24

arxiv.org/abs/0706.3540v1

Physics

Chemical Physics

Scientific paper

A Galerkin finite element (FEM) formulation for the Bloch equations with dipolar field is presented which makes possible the derivation of weak solutions to the Bloch equations. The FEM formulation has the advantage that the equations of motion are local in real space, eliminating the global truncation errors associated with calculations of the dipolar field in Fourier space. The dipolar field and other geometric parameters are calculated only once, before the simulation, and used as an initial condition rather than re-calculated at every time step of some numerical integration.

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