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Short‐range exchange‐correlation energy of a uniform electron gas with modified electron–electron interaction
Author(s) -
Toulouse Julien,
Savin Andreas,
Flad HeinzJürgen
Publication year - 2004
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.20259
Subject(s) - fermi gas , electron , parametrization (atmospheric modeling) , range (aeronautics) , electronic correlation , physics , atomic physics , electron density , chemistry , energy (signal processing) , quantum mechanics , materials science , composite material , radiative transfer
We calculate the short‐range exchange‐correlation energy of the uniform electron gas with two modified electron–electron interactions. While the short‐range exchange functionals are calculated analytically, coupled‐cluster and Fermi‐hypernetted‐chain calculations are carried out for the correlation energy and the results are fitted to an analytical parametrization. These data enable us to construct the local density approximation corresponding to these modified interactions. © 2004 Wiley Periodicals, Inc. Int J Quantum Chem, 2004