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A Proposal of the Approximate Kinetic Energy Functional of the Pair Density Functional Theory
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2013)
We propose the approximate kinetic energy (KE) functional of the pair density (PD) functional theory on the basis of the coupling-constant expression that is recently derived [Phys. Rev. A 85 (2012) 062508]. The proposed KE functional, which is called the "correlated Gaussian model", consists of the modified version of the Thomas-Fermi (TF) model and correlation energy functional of the local density approximation. We check the validity of the correlated Gaussian model by means of numericaldoi:10.7566/jpscp.3.017009 fatcat:5szptieg7bf35gsynbxezwmdiu