Diagonalization of the Dirac equation: An alternative approachAMERICAN JOURNAL OF PHYSICS
AbstractThe reduction of a relativistic Hamiltonian to its effective nonrelativistic form, usually accomplished via a Foldy–Wouthuysen transformation, is derived via Lagrangian methods. This technique provides a pedagogically interesting introduction to the so-called heavy baryon field theory.
Citation InformationBR Holstein. "Diagonalization of the Dirac equation: An alternative approach" AMERICAN JOURNAL OF PHYSICS Vol. 65 Iss. 6 (1997)
Available at: http://works.bepress.com/barry_holstein/88/