Using a simple model of fermions interacting with a strong short range repulsive potential, we discuss how short range correlations can be described with a linear combination of Slater determinants using variational methods. The many-body wavefunction obtained in this way is used to evaluate the two-particle correlation function which shows the typical depletion at distances between particles comparable with the range of the repulsive potential.
A model study of short range correlations with a multi determinantal method / G. Puddu. - In: PHYSICA SCRIPTA. - ISSN 0031-8949. - 74:5(2006), pp. 016.576-016.578.
A model study of short range correlations with a multi determinantal method
G. PudduPrimo
2006
Abstract
Using a simple model of fermions interacting with a strong short range repulsive potential, we discuss how short range correlations can be described with a linear combination of Slater determinants using variational methods. The many-body wavefunction obtained in this way is used to evaluate the two-particle correlation function which shows the typical depletion at distances between particles comparable with the range of the repulsive potential.
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