Artículos de revistas
Coupled channel formulation of the perturbed finite-temperature atomic random phase approximation: single channel approximation
Registro en:
Journal Of Quantitative Spectroscopy & Radiative Transfer. Pergamon-elsevier Science Ltd, v. 81, n. 41730, n. 247, n. 254, 2003.
0022-4073
WOS:000184077000024
10.1016/S0022-4073(03)00077-3
Autor
Csanak, G
Kilcrease, DP
Meneses, GD
Institución
Resumen
We present the spin and angular momentum analysis of the inhomogeneous coupled partial integro-differential equation formulation of the finite-temperature random phase approximation of an atom in a plasma. We demonstrate the cancellation of the direct and exchange self-interaction terms in the three-dimensional form of the equations. The direct self-interaction terms are also shown to cancel for each partial wave in the radial equations obtained from the spin and angular momentum analysis. We discuss how this inhomogeneous formulation avoids normalization difficulties encountered in our previous homogeneous eigenvalue formulation. Finally, the photoabsorption of the atom is given in terms of its polarizability. (C) 2003 Elsevier Science Ltd. All rights reserved. 81 41730 247 254