Systematic improvement of Hartree-Fock-Bogoliubov approximation with exponentially fast convergence from variational perturbation theory

DOI10.1006/aphy.1998.5789zbMath0922.47063OpenAlexW1966467969MaRDI QIDQ1283184

Hagen Kleinert

Publication date: 10 October 1999

Published in: Annals of Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1006/aphy.1998.5789

zbMATH Keywords

variational methodmany-body systemfield theoriesvariational perturbation theoryHartree-Fock-Bogoliubov approximationbilocal Legendre transformationsdivergent perturbation expansionsexponentially fast converging expansionsquantum mechanical anharmonic oscillator

Mathematics Subject Classification ID

Related Items (1)

Two-particle irreducible effective actions versus resummation: analytic properties and self-consistency

Cites Work

• Many-Body Problem in Quantum Statistical Mechanics. I. General Formulation
• Unnamed Item

This page was built for publication: Systematic improvement of Hartree-Fock-Bogoliubov approximation with exponentially fast convergence from variational perturbation theory