A new local density functional approach for the calculation of correlation energies of many-electron atomic systems is proposed by using the exact results for the correlation energy of a two-electron system bound by a harmonic oscillator external potential. This is motivated by the fact that the cor
New approach to calculation of the leaky aquifer function
โ Scribed by Frank E. Harris
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 130 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0020-7608
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โฆ Synopsis
The leaky aquifer function W x, y , an incomplete Bessel function which has had application in hydrology, is now also arising in electronic-structure calculations on periodic systems. This work presents an expansion which improves the efficiency of calculation of W in the range where x and y are comparable and both are larger than unity.
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