# Difference between revisions of "Weighted density approximation"

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+ | In this approximation the free energy depends on | ||

+ | the weighted density, that is: some average of the | ||

+ | density. | ||

+ | |||

==References== | ==References== | ||

#[http://dx.doi.org/10.1016/0038-1098(77)91185-1 O. Gunnarsson, M. Jonson and B. I. Lundqvist "Exchange and correlation in inhomogeneous electron systems", Solid State Communications '''24''' pp. 765-768 (1977)] | #[http://dx.doi.org/10.1016/0038-1098(77)91185-1 O. Gunnarsson, M. Jonson and B. I. Lundqvist "Exchange and correlation in inhomogeneous electron systems", Solid State Communications '''24''' pp. 765-768 (1977)] |

## Revision as of 10:47, 9 October 2007

In this approximation the free energy depends on the weighted density, that is: some average of the density.

## References

- O. Gunnarsson, M. Jonson and B. I. Lundqvist "Exchange and correlation in inhomogeneous electron systems", Solid State Communications
**24**pp. 765-768 (1977) - J. A. Alonso and L. A. Girifalco "Nonlocal approximation to the exchange potential and kinetic energy of an inhomogeneous electron gas", Physical Review B '
*17*pp. 3735 - 3743 (1978) - O. Gunnarsson, M. Jonson and B. I. Lundqvist "Descriptions of exchange and correlation effects in inhomogeneous electron systems" Physical Review B
**20**3136 - 3164 (1979)