Improving energies by using exact electron densities (bibtex)
by Kieron Burke, John P. Perdew, Mel Levy
Abstract:
The exact electronic ground-state density and external potential are used to improve the accuracy of approximate density functionals. Our approach combines the advantages that the exact exchange-correlation energy functional is more local for full-coupling strength than for the coupling-constant average, and that knowledge of the exact virial can be used to reduce the exchange energy error by a factor of 2.
Reference:
Improving energies by using exact electron densities Kieron Burke, John P. Perdew, Mel Levy, Phys. Rev. A 53, R2915-R2917 (1996).
Bibtex Entry:
@article{BPL96,
	Pub-num = {25},
	Abstract = {The exact electronic ground-state density and external potential are used to improve the accuracy of approximate density functionals. Our approach combines the advantages that the exact exchange-correlation energy functional is more local for full-coupling strength than for the coupling-constant average, and that knowledge of the exact virial can be used to reduce the exchange energy error by a factor of 2.},
	  title = {Improving energies by using exact electron densities},
	  author = {Burke, Kieron and Perdew, John P. and Levy, Mel},
	  journal = {Phys. Rev. A},
	  volume = {53},
	  issue = {5},
	  pages = {R2915-R2917},
	  year = {1996},
	  month = {May},
	  doi = {10.1103/PhysRevA.53.R2915},
	  url = {http://link.aps.org/doi/10.1103/PhysRevA.53.R2915},
	  publisher = {American Physical Society}
}
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