Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Dirac R-matrix with pseudo-states

Badnell, N.R. (2008) Dirac R-matrix with pseudo-states. Journal of Physics B: Atomic, Molecular and Optical Physics, 41 (17). ISSN 0953-4075

Full text not available in this repository. (Request a copy from the Strathclyde author)


We describe the development of the Dirac R-matrix with pseudo-states (DRMPS) method for electron and photon collisions with arbitrary atoms and ions. An N-electron atom is represented by an anti-symmetrized product of single-particle spinors comprising the usual four-component Dirac spinors as well as paired two-component Laguerre spinors (L-spinors). The convergent L-spinor basis forms a discretization of the electron and positron continua. This representation has been implemented quite generally within the general relativistic atomic structure package (GRASP) specifically GRASP0. An (N + 1)th 'scattering' electron is represented by the exact same L-spinor basis plus the usual R-matrix box-state spinors which are chosen so as to form a combined complete finite linearly independent orthogonal basis. The (non-diagonal) Buttle correction is determined consistently. This representation has been implemented quite generally within the Dirac atomic R-matrix code (DARC). Results of some simple model problems are presented which demonstrate the correctness of the implementation. (Abstract from :

Item type: Article
ID code: 19535
Keywords: Dirac R-matrix, pseudo-states, (DRMPS) method, electron and photon collisions, arbitrary atoms and ions, Physics, Atomic and Molecular Physics, and Optics, Condensed Matter Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Depositing user: Strathprints Administrator
Date Deposited: 26 May 2010 15:27
Last modified: 21 May 2015 11:50
Related URLs:

Actions (login required)

View Item View Item