Total photoionization, cross sections for H2 are ulculared in the random phase approximation (RPA) through a nur;lerical analytic coniinuation procedure applied to the polarrability for complex val&s of the frequency. The reprcsentition of the polarizability that is required is obtained from 3 discr
Random-phase approximation for transport cross sections
β Scribed by H.-S. Hahn; E.A. Mason
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 225 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
The random-phase approximation is tested for the first two transport cross sections with several L potential functtons. Fairly good results are obtained. and the approximation is recommended for exploratory calculations, eince it requires very little computational effort.
π SIMILAR VOLUMES
The photoionization cross sections and asymmetry parameters of the three main valence ionization processes in HI, corresponding to the formation of, respectively, 6a, l l u , and 10 (T holes, were calculated in the random-phase approximation (RPA). Our particular computational procedure, based on so
An algorithm for calculating excitation energies and transition moments in the randomphase approximation (RPA) of the polarization propagator is presented. The algorithm includes direct solution of the RPA eigenvalue problem and direct evaluation of products of superoperator Hamiltonian matrices wit