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This work was performed under the auspices of the United States Department of Energy.
Published In
Physical Review A
Document Type
Article
Publication Date
9-1-1981
Subjects
Correlation (Statistics), Mathematical physics, Density functionals
Abstract
A time-dependent direct correlation function (TDDCF) is defined and discussed. The definition (which differs from that proposed by Percus and Yevick) is motivated by linear response theory. The TDDCF consequently has a functional-derivative or stimulus-response interpretation closely analogous to that of the static direct correlation function. Mean-field considerations suggest that the TDDCF separates into a term which is simply related to the pair potential and a spatially shorter-ranged remainder. This behavior is confirmed in the Vlasov-Zwanzig approximation.
DOI
10.1103/PhysRevA.24.1567
Persistent Identifier
http://archives.pdx.edu/ds/psu/7801
Citation Details
J.D. Ramshaw, "Time-dependent direct correlation function," Phys. Rev. A 24, 1567 (1981)
Description
This is the publisher's final PDF. Article appears in Physical Review A (http://pra.aps.org/) and is copyrighted by APS Journals (http://publish.aps.org/)