A solvable version of the collisional random phase approximation
✍ Scribed by Mota, V. ;Hern�ndez, E. S.
- Publisher
- Springer
- Year
- 1987
- Tongue
- English
- Weight
- 831 KB
- Volume
- 328
- Category
- Article
- ISSN
- 1434-601X
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## Abstract The random phase approximation (RPA) or time‐dependent Hartree–Fock approximation (TDHF) is reconsidered for the calculation of the dynamic polarizability for atoms. An integral equation which admits a simple numerical treatment is established. The asymptotic approximation for the elect
The electronic excitation energies for the Na, T, cluster and the associated oscillator strengths have been determined by effective core potential (ECP) calculations in the random phase approximation. A total of 20 allowed optical transitions have been computed: IT2 and 2Tz statescorrespond to the w
## Abstract Detailed considerations of the ground‐state vector derived for the random phase approximation obtained earlier in a generator coordinate representation employing the unitary group parameter space reveal a particular correlated pair structure. The results of explicit calculations of grou