Solution of the Dirac Equation using the Lanczos Algorithm

Details Solution of the Dirac Equation using the Lanczos Algorithm Solution of the Dirac Equation using the Lanczos Algorithm

2007-06-15

arxiv.org/abs/0706.2236v1

Physics

Mathematical Physics

Scientific paper

Covergent eigensolutions of the Dirac Equation for a relativistic electron in an external Coulomb potential are obtained using the Lanczos Algorithm. A tri-diagonal matrix representation of the Dirac Hamiltonian operator is constructed iteratively and diagonalized after each iteration step to form a sequence of convergent eigenvalue solutions. Any spurious solutions which arise from the presence of continuum states can easily be identified.

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