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SL(2,C)-invariant representation of the Dirac equation. II. Coulomb Green's function

Journal Article · · J. Math. Phys. (N.Y.); (United States)
DOI:https://doi.org/10.1063/1.525985· OSTI ID:5720286

The Kepler problem for the Klein--Gordon type wave equation )Pi/sub ..mu../Pi/sub ..mu../+m/sup 2/+iesigmax(E+iB))phi = 0, investigated earlier (J. Math. Phys. 23, 1179 (1982)) and proven to be equivalent to the conventional Dirac equation, is discussed. In this equation phi is a 2 x 1 Pauli spinor and sigma/sub a/, a = 1, 2, 3, are the usual 2 x 2 Pauli spin matrices. Quite simple expressions for the bound state Coulomb wavefunctions and for the Coulomb Green's function are obtained by exploiting the concept of ''coupling constant eigenfunction.'' To facilitate the direct use of these simple expressions in Coulomb calculations, a stationary state perturbation theory appropriate for the Klein--Gordon type wave equation itself is described.

Research Organization:
Physics Department, Wilkes College, Wilkes-Barre, Pennsylvania 18766
OSTI ID:
5720286
Journal Information:
J. Math. Phys. (N.Y.); (United States), Journal Name: J. Math. Phys. (N.Y.); (United States) Vol. 24:9; ISSN JMAPA
Country of Publication:
United States
Language:
English