Implicit ladder summation in the Hartree-Fock-Bogoliubov approach
Quantum Gases
2012-07-17 v1 Quantum Physics
Abstract
The fully variational Hartree Fock Bogoliubov approach for bosons is studied in the limit of zero range forces in two- and three-dimensions. The equation of state obtained in two-dimensions is expressed in a parametric form. It is shown that the potential permits to perform an implicit summation of the ladder diagrams without leaving the variational scheme, restoring thus the consistency of this approximation.
Keywords
Cite
@article{arxiv.1108.5702,
title = {Implicit ladder summation in the Hartree-Fock-Bogoliubov approach},
author = {Ludovic Pricoupenko},
journal= {arXiv preprint arXiv:1108.5702},
year = {2012}
}