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Related Experiment Video

Updated: May 31, 2026

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Published on: April 8, 2020

Computational schemes for the ground-state pair density.

K Higuchi¹, M Higuchi

¹Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|July 1, 2011

Summary

This summary is machine-generated.

This study reconfirms a scheme for calculating ground-state pair density, reproducing about 20% of correlation energy. The findings pave the way for developing advanced computational schemes beyond the initial method.

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Area of Science:

Quantum Chemistry
Computational Physics

Background:

The accurate calculation of ground-state pair density is crucial for understanding electronic structure.
Previous work established an initial scheme for this calculation.

Purpose of the Study:

To reconfirm the performance of the initial scheme for ground-state pair density calculation.
To explore the potential for developing advanced computational schemes.

Main Methods:

Utilizing an alternative approximation for the correlating kinetic energy functional.
Reconfirming the initial scheme's performance through computational analysis.

Main Results:

The initial scheme reproduces approximately 20% of the correlation energy.
This performance is consistent regardless of the specific correlating kinetic energy functional approximation used.
The study illustrates two types of computational schemes that extend the initial method.

Conclusions:

The initial scheme for ground-state pair density calculation is robust.
The established scheme provides a foundation for developing more sophisticated computational methods in quantum chemistry and physics.