DOI: 10.1142/s0217979299000436. VARIATIONAL TOTAL ENERGIES FROM Φ- AND Ψ- DERIVABLE THEORIES

VARIATIONAL TOTAL ENERGIES FROM Φ- AND Ψ- DERIVABLE THEORIES

10.1142/s0217979299000436

Crossref journal-article

World Scientific Pub Co Pte Lt

International Journal of Modern Physics B (219)

Abstract

Starting from many-body perturbation theory we have constructed a new variational expression for the total energy of many-electron systems. This expression is a functional of two independent variables, the one-electron Green function and the screened Coulomb interaction. The new functional as well as a much older variational expression by Luttinger and Ward (LW) are tested on the interacting electron gas. Both functionals yield extraordinary accurate total energies although the new functional requires a much cruder input and is therefore easier to apply to more realistic systems.

Bibliography

ALMBLADH, C.-O., BARTH, U. V., & LEEUWEN, R. V. (1999). VARIATIONAL TOTAL ENERGIES FROM Î¦- AND Î¨- DERIVABLE THEORIES. International Journal of Modern Physics B, 13(05n06), 535â541.

Authors 3

C.-O. ALMBLADH (first)
U. VON BARTH (additional)
R. VAN LEEUWEN (additional)

References 9 Referenced 119

10.1103/PhysRev.136.B864
{'key': 'p_4', 'first-page': '1', 'volume': '72', 'author': 'Perdew J. P.', 'year': '1991', 'journal-title': 'Physica'} / Physica by Perdew J. P. (1991)
10.1080/00268977800100091
10.1063/1.459578
10.1007/BF02422566
10.1103/PhysRev.118.1417
{'key': 'p_10', 'volume': '57', 'author': 'Holm B.', 'journal-title': 'Phys. Rev. B'} / Phys. Rev. B by Holm B.
10.1103/PhysRevLett.45.566
{'key': 'p_13', 'first-page': '139', 'volume': '34', 'author': 'Galitskii V.', 'year': '1958', 'journal-title': 'Zh. Eksp. Teor. Fiz.'} / Zh. Eksp. Teor. Fiz. by Galitskii V. (1958)

Dates

Type	When
Created	23 years, 1 month ago (July 27, 2002, 6:58 a.m.)
Deposited	6 years ago (Aug. 6, 2019, 8:24 p.m.)
Indexed	1 week ago (Aug. 23, 2025, 9:18 p.m.)
Issued	26 years, 5 months ago (March 10, 1999)
Published	26 years, 5 months ago (March 10, 1999)
Published Online	13 years, 7 months ago (Jan. 25, 2012)
Published Print	26 years, 5 months ago (March 10, 1999)

Funders 0

None

BibTeX

@article{ALMBLADH_1999, title={VARIATIONAL TOTAL ENERGIES FROM Φ- AND Ψ- DERIVABLE THEORIES}, volume={13}, ISSN={1793-6578}, url={http://dx.doi.org/10.1142/s0217979299000436}, DOI={10.1142/s0217979299000436}, number={05n06}, journal={International Journal of Modern Physics B}, publisher={World Scientific Pub Co Pte Lt}, author={ALMBLADH, C.-O. and BARTH, U. VON and LEEUWEN, R. VAN}, year={1999}, month=mar, pages={535–541} }

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